Mixture of Piperazine + Methyldiethanolamine + Water

Datasets

1. C_p,liquid - Molar heat capacity at constant pressure, J/K/mol (2)
2. η - Viscosity, Pa*s (10)
3. Excess molar heat capacity, J/K/mol (2)
4. n₀ - Refractive index (Na D-line) (2)
5. ρ_l - Mass density, kg/m3 (12)
6. γ - Surface tension liquid-gas, N/m (6)

Molar heat capacity at constant pressure, J/K/mol [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mole fraction of Water (3) - Liquid	Mole fraction of Piperazine (1) - Liquid	Molar heat capacity at constant pressure, J/K/mol - Liquid
303.20	0.6000	0.0800	152.10
303.20	0.6000	0.1600	149.40
303.20	0.6000	0.2400	143.70
303.20	0.7000	0.0600	133.70
303.20	0.7000	0.1200	130.20
303.20	0.7000	0.1800	126.90
303.20	0.7000	0.2400	121.00
303.20	0.8000	0.0400	114.70
303.20	0.8000	0.0800	113.30
303.20	0.8000	0.1200	110.10
303.20	0.8000	0.1600	106.50
303.20	0.9000	0.0200	95.10
303.20	0.9000	0.0400	93.90
303.20	0.9000	0.0600	92.50
303.20	0.9000	0.0800	91.40
308.20	0.6000	0.0800	154.00
308.20	0.6000	0.1600	151.30
308.20	0.6000	0.2400	145.50
308.20	0.7000	0.0600	135.30
308.20	0.7000	0.1200	131.80
308.20	0.7000	0.1800	128.40
308.20	0.7000	0.2400	122.50
308.20	0.8000	0.0400	116.00
308.20	0.8000	0.0800	114.50
308.20	0.8000	0.1200	111.30
308.20	0.8000	0.1600	107.70
308.20	0.9000	0.0200	95.80
308.20	0.9000	0.0400	94.60
308.20	0.9000	0.0600	93.10
308.20	0.9000	0.0800	92.00
313.20	0.6000	0.0800	155.80
313.20	0.6000	0.1600	153.10
313.20	0.6000	0.2400	147.30
313.20	0.7000	0.0600	137.00
313.20	0.7000	0.1200	133.40
313.20	0.7000	0.1800	129.90
313.20	0.7000	0.2400	124.10
313.20	0.8000	0.0400	117.40
313.20	0.8000	0.0800	115.70
313.20	0.8000	0.1200	112.50
313.20	0.8000	0.1600	108.90
313.20	0.9000	0.0200	96.50
313.20	0.9000	0.0400	95.30
313.20	0.9000	0.0600	93.80
313.20	0.9000	0.0800	92.70
318.20	0.6000	0.0800	157.70
318.20	0.6000	0.1600	154.80
318.20	0.6000	0.2400	149.20
318.20	0.7000	0.0600	138.60
318.20	0.7000	0.1200	135.00
318.20	0.7000	0.1800	131.50
318.20	0.7000	0.2400	125.70
318.20	0.8000	0.0400	118.60
318.20	0.8000	0.0800	116.90
318.20	0.8000	0.1200	113.70
318.20	0.8000	0.1600	110.10
318.20	0.9000	0.0200	97.10
318.20	0.9000	0.0400	96.00
318.20	0.9000	0.0600	94.50
318.20	0.9000	0.0800	93.30
323.20	0.6000	0.0800	159.60
323.20	0.6000	0.1600	156.90
323.20	0.6000	0.2400	151.00
323.20	0.7000	0.0600	140.20
323.20	0.7000	0.1200	136.50
323.20	0.7000	0.1800	133.00
323.20	0.7000	0.2400	127.20
323.20	0.8000	0.0400	119.90
323.20	0.8000	0.0800	118.10
323.20	0.8000	0.1200	114.90
323.20	0.8000	0.1600	111.30
323.20	0.9000	0.0200	97.80
323.20	0.9000	0.0400	96.80
323.20	0.9000	0.0600	95.10
323.20	0.9000	0.0800	94.00
328.20	0.6000	0.0800	161.40
328.20	0.6000	0.1600	158.80
328.20	0.6000	0.2400	152.90
328.20	0.7000	0.0600	141.90
328.20	0.7000	0.1200	138.10
328.20	0.7000	0.1800	134.60
328.20	0.7000	0.2400	128.80
328.20	0.8000	0.0400	121.10
328.20	0.8000	0.0800	119.30
328.20	0.8000	0.1200	116.10
328.20	0.8000	0.1600	112.60
328.20	0.9000	0.0200	98.50
328.20	0.9000	0.0400	97.50
328.20	0.9000	0.0600	95.80
328.20	0.9000	0.0800	94.60
333.20	0.6000	0.0800	163.30
333.20	0.6000	0.1600	160.60
333.20	0.6000	0.2400	155.40
333.20	0.7000	0.0600	143.60
333.20	0.7000	0.1200	139.70
333.20	0.7000	0.1800	136.10
333.20	0.7000	0.2400	130.40
333.20	0.8000	0.0400	122.30
333.20	0.8000	0.0800	120.50
333.20	0.8000	0.1200	117.30
333.20	0.8000	0.1600	113.80
333.20	0.9000	0.0200	99.20
333.20	0.9000	0.0400	98.20
333.20	0.9000	0.0600	96.50
333.20	0.9000	0.0800	95.30
338.20	0.6000	0.0800	165.20
338.20	0.6000	0.1600	162.50
338.20	0.6000	0.2400	157.10
338.20	0.7000	0.0600	145.20
338.20	0.7000	0.1200	141.30
338.20	0.7000	0.1800	137.60
338.20	0.7000	0.2400	132.00
338.20	0.8000	0.0400	123.70
338.20	0.8000	0.0800	121.70
338.20	0.8000	0.1200	118.60
338.20	0.8000	0.1600	115.10
338.20	0.9000	0.0200	99.90
338.20	0.9000	0.0400	98.90
338.20	0.9000	0.0600	97.20
338.20	0.9000	0.0800	95.90
343.20	0.6000	0.0800	167.10
343.20	0.6000	0.1600	164.40
343.20	0.6000	0.2400	158.70
343.20	0.7000	0.0600	146.90
343.20	0.7000	0.1200	142.90
343.20	0.7000	0.1800	139.20
343.20	0.7000	0.2400	133.60
343.20	0.8000	0.0400	124.90
343.20	0.8000	0.0800	122.90
343.20	0.8000	0.1200	119.80
343.20	0.8000	0.1600	116.30
343.20	0.9000	0.0200	100.60
343.20	0.9000	0.0400	99.70
343.20	0.9000	0.0600	97.80
343.20	0.9000	0.0800	96.60
348.20	0.6000	0.0800	168.90
348.20	0.6000	0.1600	166.20
348.20	0.6000	0.2400	160.50
348.20	0.7000	0.0600	148.60
348.20	0.7000	0.1200	144.50
348.20	0.7000	0.1800	140.80
348.20	0.7000	0.2400	135.20
348.20	0.8000	0.0400	126.40
348.20	0.8000	0.0800	124.10
348.20	0.8000	0.1200	120.00
348.20	0.8000	0.1600	117.60
348.20	0.9000	0.0200	101.40
348.20	0.9000	0.0400	100.40
348.20	0.9000	0.0600	98.60
348.20	0.9000	0.0800	97.30
353.20	0.6000	0.0800	170.80
353.20	0.6000	0.1600	168.10
353.20	0.6000	0.2400	162.20
353.20	0.7000	0.0600	150.30
353.20	0.7000	0.1200	146.10
353.20	0.7000	0.1800	142.30
353.20	0.7000	0.2400	136.70
353.20	0.8000	0.0400	127.90
353.20	0.8000	0.0800	125.30
353.20	0.8000	0.1200	122.20
353.20	0.8000	0.1600	118.80
353.20	0.9000	0.0200	102.10
353.20	0.9000	0.0400	101.20
353.20	0.9000	0.0600	99.30
353.20	0.9000	0.0800	97.90

Molar heat capacity at constant pressure, J/K/mol [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mole fraction of Water (3) - Liquid	Mole fraction of Piperazine (1) - Liquid	Molar heat capacity at constant pressure, J/K/mol - Liquid
303.20	0.6000	0.0800	152.10
303.20	0.6000	0.1600	149.40
303.20	0.6000	0.2400	143.70
303.20	0.7000	0.0600	133.70
303.20	0.7000	0.1200	130.20
303.20	0.7000	0.1800	126.90
303.20	0.7000	0.2400	121.00
303.20	0.8000	0.0400	114.70
303.20	0.8000	0.0800	113.30
303.20	0.8000	0.1200	110.10
303.20	0.8000	0.1600	106.50
303.20	0.9000	0.0200	95.10
303.20	0.9000	0.0400	93.90
303.20	0.9000	0.0600	92.50
303.20	0.9000	0.0800	91.40
308.20	0.6000	0.0800	154.00
308.20	0.6000	0.1600	151.30
308.20	0.6000	0.2400	145.50
308.20	0.7000	0.0600	135.30
308.20	0.7000	0.1200	131.80
308.20	0.7000	0.1800	128.40
308.20	0.7000	0.2400	122.50
308.20	0.8000	0.0400	116.00
308.20	0.8000	0.0800	114.50
308.20	0.8000	0.1200	111.30
308.20	0.8000	0.1600	107.70
308.20	0.9000	0.0200	95.80
308.20	0.9000	0.0400	94.60
308.20	0.9000	0.0600	93.10
308.20	0.9000	0.0800	92.00
313.20	0.6000	0.0800	155.80
313.20	0.6000	0.1600	153.10
313.20	0.6000	0.2400	147.30
313.20	0.7000	0.0600	137.00
313.20	0.7000	0.1200	133.40
313.20	0.7000	0.1800	129.90
313.20	0.7000	0.2400	124.10
313.20	0.8000	0.0400	117.40
313.20	0.8000	0.0800	115.70
313.20	0.8000	0.1200	112.50
313.20	0.8000	0.1600	108.90
313.20	0.9000	0.0200	96.50
313.20	0.9000	0.0400	95.30
313.20	0.9000	0.0600	93.80
313.20	0.9000	0.0800	92.70
318.20	0.6000	0.0800	157.70
318.20	0.6000	0.1600	154.80
318.20	0.6000	0.2400	149.20
318.20	0.7000	0.0600	138.60
318.20	0.7000	0.1200	135.00
318.20	0.7000	0.1800	131.50
318.20	0.7000	0.2400	125.70
318.20	0.8000	0.0400	118.60
318.20	0.8000	0.0800	116.90
318.20	0.8000	0.1200	113.70
318.20	0.8000	0.1600	110.10
318.20	0.9000	0.0200	97.10
318.20	0.9000	0.0400	96.00
318.20	0.9000	0.0600	94.50
318.20	0.9000	0.0800	93.30
323.20	0.6000	0.0800	159.60
323.20	0.6000	0.1600	156.90
323.20	0.6000	0.2400	151.00
323.20	0.7000	0.0600	140.20
323.20	0.7000	0.1200	136.50
323.20	0.7000	0.1800	133.00
323.20	0.7000	0.2400	127.20
323.20	0.8000	0.0400	119.90
323.20	0.8000	0.0800	118.10
323.20	0.8000	0.1200	114.90
323.20	0.8000	0.1600	111.30
323.20	0.9000	0.0200	97.80
323.20	0.9000	0.0400	96.80
323.20	0.9000	0.0600	95.10
323.20	0.9000	0.0800	94.00
328.20	0.6000	0.0800	161.40
328.20	0.6000	0.1600	158.80
328.20	0.6000	0.2400	152.90
328.20	0.7000	0.0600	141.90
328.20	0.7000	0.1200	138.10
328.20	0.7000	0.1800	134.60
328.20	0.7000	0.2400	128.80
328.20	0.8000	0.0400	121.10
328.20	0.8000	0.0800	119.30
328.20	0.8000	0.1200	116.10
328.20	0.8000	0.1600	112.60
328.20	0.9000	0.0200	98.50
328.20	0.9000	0.0400	97.50
328.20	0.9000	0.0600	95.80
328.20	0.9000	0.0800	94.60
333.20	0.6000	0.0800	163.30
333.20	0.6000	0.1600	160.60
333.20	0.6000	0.2400	155.40
333.20	0.7000	0.0600	143.60
333.20	0.7000	0.1200	139.70
333.20	0.7000	0.1800	136.10
333.20	0.7000	0.2400	130.40
333.20	0.8000	0.0400	122.30
333.20	0.8000	0.0800	120.50
333.20	0.8000	0.1200	117.30
333.20	0.8000	0.1600	113.80
333.20	0.9000	0.0200	99.20
333.20	0.9000	0.0400	98.20
333.20	0.9000	0.0600	96.50
333.20	0.9000	0.0800	95.30
338.20	0.6000	0.0800	165.20
338.20	0.6000	0.1600	162.50
338.20	0.6000	0.2400	157.10
338.20	0.7000	0.0600	145.20
338.20	0.7000	0.1200	141.30
338.20	0.7000	0.1800	137.60
338.20	0.7000	0.2400	132.00
338.20	0.8000	0.0400	123.70
338.20	0.8000	0.0800	121.70
338.20	0.8000	0.1200	118.60
338.20	0.8000	0.1600	115.10
338.20	0.9000	0.0200	99.90
338.20	0.9000	0.0400	98.90
338.20	0.9000	0.0600	97.20
338.20	0.9000	0.0800	95.90
343.20	0.6000	0.0800	167.10
343.20	0.6000	0.1600	164.40
343.20	0.6000	0.2400	158.70
343.20	0.7000	0.0600	146.90
343.20	0.7000	0.1200	142.90
343.20	0.7000	0.1800	139.20
343.20	0.7000	0.2400	133.60
343.20	0.8000	0.0400	124.90
343.20	0.8000	0.0800	122.90
343.20	0.8000	0.1200	119.80
343.20	0.8000	0.1600	116.30
343.20	0.9000	0.0200	100.60
343.20	0.9000	0.0400	99.70
343.20	0.9000	0.0600	97.80
343.20	0.9000	0.0800	96.60
348.20	0.6000	0.0800	168.90
348.20	0.6000	0.1600	166.20
348.20	0.6000	0.2400	160.50
348.20	0.7000	0.0600	148.60
348.20	0.7000	0.1200	144.50
348.20	0.7000	0.1800	140.80
348.20	0.7000	0.2400	135.20
348.20	0.8000	0.0400	126.40
348.20	0.8000	0.0800	124.10
348.20	0.8000	0.1200	120.00
348.20	0.8000	0.1600	117.60
348.20	0.9000	0.0200	101.40
348.20	0.9000	0.0400	100.40
348.20	0.9000	0.0600	98.60
348.20	0.9000	0.0800	97.30
353.20	0.6000	0.0800	170.80
353.20	0.6000	0.1600	168.10
353.20	0.6000	0.2400	162.20
353.20	0.7000	0.0600	150.30
353.20	0.7000	0.1200	146.10
353.20	0.7000	0.1800	142.30
353.20	0.7000	0.2400	136.70
353.20	0.8000	0.0400	127.90
353.20	0.8000	0.0800	125.30
353.20	0.8000	0.1200	122.20
353.20	0.8000	0.1600	118.80
353.20	0.9000	0.0200	102.10
353.20	0.9000	0.0400	101.20
353.20	0.9000	0.0600	99.30
353.20	0.9000	0.0800	97.90

Viscosity, Pa*s [ref]

Operational conditions:

• Molality, mol/kg = 4.912 (Liquid)
• Molality, mol/kg = 1.022 (Liquid)
• Pressure, kPa = 97.7 (Liquid)

Temperature, K - Liquid	Viscosity, Pa*s - Liquid
293.15	0.0074
303.15	0.0049
313.15	0.0035
323.15	0.0026
333.15	0.0020
343.15	0.0015
353.15	0.0012

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 400 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Piperazine (1) - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Viscosity, Pa*s - Liquid
303.15	0.0500	0.2000	0.0023
308.15	0.0500	0.2000	0.0020
313.15	0.0500	0.2000	0.0017
318.15	0.0500	0.2000	0.0015
323.15	0.0500	0.2000	0.0013
328.15	0.0500	0.2000	0.0012
333.15	0.0500	0.2000	0.0011
338.15	0.0500	0.2000	0.0010
343.15	0.0500	0.2000	0.0009
348.15	0.0500	0.2000	0.0008
353.15	0.0500	0.2000	0.0007
358.15	0.0500	0.2000	0.0007
363.15	0.0500	0.2000	0.0007
368.15	0.0500	0.2000	0.0007
373.15	0.0500	0.2000	0.0007
303.15	0.0500	0.3000	0.0037
308.15	0.0500	0.3000	0.0031
313.15	0.0500	0.3000	0.0026
318.15	0.0500	0.3000	0.0023
323.15	0.0500	0.3000	0.0020
328.15	0.0500	0.3000	0.0018
333.15	0.0500	0.3000	0.0015
338.15	0.0500	0.3000	0.0014
343.15	0.0500	0.3000	0.0013
348.15	0.0500	0.3000	0.0012
353.15	0.0500	0.3000	0.0010
358.15	0.0500	0.3000	0.0010
363.15	0.0500	0.3000	0.0009
368.15	0.0500	0.3000	0.0009
373.15	0.0500	0.3000	0.0008
303.15	0.0500	0.4000	0.0063
308.15	0.0500	0.4000	0.0053
313.15	0.0500	0.4000	0.0044
318.15	0.0500	0.4000	0.0038
323.15	0.0500	0.4000	0.0032
328.15	0.0500	0.4000	0.0028
333.15	0.0500	0.4000	0.0024
338.15	0.0500	0.4000	0.0022
343.15	0.0500	0.4000	0.0020
348.15	0.0500	0.4000	0.0017
353.15	0.0500	0.4000	0.0016
358.15	0.0500	0.4000	0.0016
363.15	0.0500	0.4000	0.0015
368.15	0.0500	0.4000	0.0013
373.15	0.0500	0.4000	0.0012
303.15	0.1000	0.2000	0.0033
308.15	0.1000	0.2000	0.0028
313.15	0.1000	0.2000	0.0024
318.15	0.1000	0.2000	0.0021
323.15	0.1000	0.2000	0.0018
328.15	0.1000	0.2000	0.0016
333.15	0.1000	0.2000	0.0014
338.15	0.1000	0.2000	0.0013
343.15	0.1000	0.2000	0.0012
348.15	0.1000	0.2000	0.0011
353.15	0.1000	0.2000	0.0009
358.15	0.1000	0.2000	0.0009
363.15	0.1000	0.2000	0.0008
368.15	0.1000	0.2000	0.0008
373.15	0.1000	0.2000	0.0008
303.15	0.1000	0.3000	0.0055
308.15	0.1000	0.3000	0.0046
313.15	0.1000	0.3000	0.0039
318.15	0.1000	0.3000	0.0033
323.15	0.1000	0.3000	0.0028
328.15	0.1000	0.3000	0.0025
333.15	0.1000	0.3000	0.0022
338.15	0.1000	0.3000	0.0020
343.15	0.1000	0.3000	0.0018
348.15	0.1000	0.3000	0.0016
353.15	0.1000	0.3000	0.0014
358.15	0.1000	0.3000	0.0013
363.15	0.1000	0.3000	0.0012
368.15	0.1000	0.3000	0.0011
373.15	0.1000	0.3000	0.0010
303.15	0.1000	0.4000	0.0095
308.15	0.1000	0.4000	0.0077
313.15	0.1000	0.4000	0.0063
318.15	0.1000	0.4000	0.0053
323.15	0.1000	0.4000	0.0044
328.15	0.1000	0.4000	0.0037
333.15	0.1000	0.4000	0.0032
338.15	0.1000	0.4000	0.0028
343.15	0.1000	0.4000	0.0025
348.15	0.1000	0.4000	0.0022
353.15	0.1000	0.4000	0.0020
358.15	0.1000	0.4000	0.0019
363.15	0.1000	0.4000	0.0016
368.15	0.1000	0.4000	0.0015
373.15	0.1000	0.4000	0.0014

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Piperazine (1) - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Viscosity, Pa*s - Liquid
288.00	0.0300	0.2700	0.0040
288.00	0.0600	0.2400	0.0050
288.00	0.0900	0.2100	0.0057
288.00	0.1200	0.1800	0.0062
293.00	0.0300	0.2700	0.0036
293.00	0.0600	0.2400	0.0043
293.00	0.0900	0.2100	0.0048
293.00	0.1200	0.1800	0.0053
298.00	0.0300	0.2700	0.0032
298.00	0.0600	0.2400	0.0036
298.00	0.0900	0.2100	0.0041
298.00	0.1200	0.1800	0.0044
303.00	0.0300	0.2700	0.0029
303.00	0.0600	0.2400	0.0031
303.00	0.0900	0.2100	0.0035
303.00	0.1200	0.1800	0.0038
308.00	0.0300	0.2700	0.0024
308.00	0.0600	0.2400	0.0027
308.00	0.0900	0.2100	0.0030
308.00	0.1200	0.1800	0.0032
313.00	0.0300	0.2700	0.0021
313.00	0.0600	0.2400	0.0023
313.00	0.0900	0.2100	0.0025
313.00	0.1200	0.1800	0.0028
318.00	0.0300	0.2700	0.0017
318.00	0.0600	0.2400	0.0020
318.00	0.0900	0.2100	0.0023
318.00	0.1200	0.1800	0.0025
323.00	0.0300	0.2700	0.0015
323.00	0.0600	0.2400	0.0018
323.00	0.0900	0.2100	0.0019
323.00	0.1200	0.1800	0.0021
328.00	0.0300	0.2700	0.0012
328.00	0.0600	0.2400	0.0015
328.00	0.0900	0.2100	0.0016
328.00	0.1200	0.1800	0.0018
333.00	0.0300	0.2700	0.0009
333.00	0.0600	0.2400	0.0013
333.00	0.0900	0.2100	0.0014
333.00	0.1200	0.1800	0.0015

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Amount concentration (molarity), mol/dm3 of Methyldiethanolamine (2) - Liquid	Amount concentration (molarity), mol/dm3 of Piperazine (1) - Liquid	Viscosity, Pa*s - Liquid
293.15	1.0000	0.0000	0.0016
293.15	1.0000	0.2500	0.0018
293.15	1.0000	0.5000	0.0020
293.15	1.0000	0.7500	0.0023
293.15	1.0000	1.0000	0.0026
293.15	2.0	0.0000	0.0027
293.15	2.0	0.2500	0.0031
293.15	2.0	0.5000	0.0036
293.15	2.0	0.7500	0.0041
293.15	2.0	1.0000	0.0047
293.15	3.0	0.0000	0.0048
293.15	3.0	0.2500	0.0056
293.15	3.0	0.5000	0.0065
293.15	3.0	0.7500	0.0080
293.15	3.0	1.0000	0.0091
293.15	4.0	0.0000	0.0096
293.15	4.0	0.2500	0.0109
293.15	4.0	0.5000	0.0131
293.15	4.0	0.7500	0.0163
293.15	4.0	1.0000	0.0197
298.15	1.0000	0.0000	0.0014
298.15	1.0000	0.2500	0.0015
298.15	1.0000	0.5000	0.0017
298.15	1.0000	0.7500	0.0020
298.15	1.0000	1.0000	0.0022
298.15	2.0	0.0000	0.0023
298.15	2.0	0.2500	0.0026
298.15	2.0	0.5000	0.0030
298.15	2.0	0.7500	0.0034
298.15	2.0	1.0000	0.0039
298.15	3.0	0.0000	0.0039
298.15	3.0	0.2500	0.0046
298.15	3.0	0.5000	0.0053
298.15	3.0	0.7500	0.0064
298.15	3.0	1.0000	0.0072
298.15	4.0	0.0000	0.0078
298.15	4.0	0.2500	0.0086
298.15	4.0	0.5000	0.0101
298.15	4.0	0.7500	0.0128
298.15	4.0	1.0000	0.0151
303.15	1.0000	0.0000	0.0012
303.15	1.0000	0.2500	0.0013
303.15	1.0000	0.5000	0.0015
303.15	1.0000	0.7500	0.0017
303.15	1.0000	1.0000	0.0019
303.15	2.0	0.0000	0.0020
303.15	2.0	0.2500	0.0022
303.15	2.0	0.5000	0.0025
303.15	2.0	0.7500	0.0029
303.15	2.0	1.0000	0.0033
303.15	3.0	0.0000	0.0033
303.15	3.0	0.2500	0.0039
303.15	3.0	0.5000	0.0044
303.15	3.0	1.0000	0.0059
303.15	4.0	0.0000	0.0062
303.15	4.0	0.2500	0.0070
303.15	4.0	0.5000	0.0081
303.15	4.0	0.7500	0.0098
303.15	4.0	1.0000	0.0117
313.15	1.0000	0.0000	0.0010
313.15	1.0000	0.2500	0.0011
313.15	1.0000	0.5000	0.0012
313.15	1.0000	0.7500	0.0013
313.15	1.0000	1.0000	0.0014
313.15	2.0	0.0000	0.0015
313.15	2.0	0.2500	0.0017
313.15	2.0	0.5000	0.0018
313.15	2.0	0.7500	0.0021
313.15	2.0	1.0000	0.0024
313.15	3.0	0.0000	0.0024
313.15	3.0	0.2500	0.0027
313.15	3.0	0.5000	0.0031
313.15	3.0	0.7500	0.0036
313.15	3.0	1.0000	0.0040
313.15	4.0	0.0000	0.0043
313.15	4.0	0.2500	0.0048
313.15	4.0	0.5000	0.0054
313.15	4.0	0.7500	0.0065
313.15	4.0	1.0000	0.0076
323.15	1.0000	0.0000	0.0008
323.15	1.0000	0.2500	0.0009
323.15	1.0000	0.5000	0.0009
323.15	1.0000	0.7500	0.0010
323.15	1.0000	1.0000	0.0011
323.15	2.0	0.0000	0.0012
323.15	2.0	0.2500	0.0013
323.15	2.0	0.5000	0.0015
323.15	2.0	0.7500	0.0016
323.15	2.0	1.0000	0.0018
323.15	3.0	0.0000	0.0018
323.15	3.0	0.2500	0.0021
323.15	3.0	0.5000	0.0023
323.15	3.0	0.7500	0.0026
323.15	3.0	1.0000	0.0029
323.15	4.0	0.0000	0.0031
323.15	4.0	0.2500	0.0034
323.15	4.0	0.5000	0.0038
323.15	4.0	0.7500	0.0044
323.15	4.0	1.0000	0.0052

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Viscosity, Pa*s - Liquid
303.15	0.3228	0.0174	0.0036
303.15	0.3228	0.0516	0.0041
303.15	0.3228	0.1035	0.0056
303.15	0.4880	0.0174	0.0069
303.15	0.4880	0.0516	0.0086
303.15	0.4880	0.1035	0.0117
313.15	0.3228	0.0174	0.0025
313.15	0.3228	0.0516	0.0030
313.15	0.3228	0.1035	0.0040
313.15	0.4880	0.0174	0.0050
313.15	0.4880	0.0516	0.0062
313.15	0.4880	0.1035	0.0084
318.15	0.3228	0.0174	0.0022
318.15	0.3228	0.0516	0.0027
318.15	0.3228	0.1035	0.0036
318.15	0.4880	0.0174	0.0044
318.15	0.4880	0.0516	0.0056
318.15	0.4880	0.1035	0.0074
323.15	0.3228	0.0174	0.0020
323.15	0.3228	0.0516	0.0024
323.15	0.3228	0.1035	0.0029
323.15	0.4880	0.0174	0.0036
323.15	0.4880	0.0516	0.0046
323.15	0.4880	0.1035	0.0063
333.15	0.3228	0.0174	0.0013
333.15	0.3228	0.0516	0.0017
333.15	0.3228	0.1035	0.0022
333.15	0.4880	0.0174	0.0027
333.15	0.4880	0.0516	0.0034
333.15	0.4880	0.1035	0.0046

Viscosity, Pa*s [ref]

Operational conditions:

• Molality, mol/kg = 4.912 (Liquid)
• Molality, mol/kg = 1.022 (Liquid)
• Pressure, kPa = 97.7 (Liquid)

Temperature, K - Liquid	Viscosity, Pa*s - Liquid
293.15	0.0074
303.15	0.0049
313.15	0.0035
323.15	0.0026
333.15	0.0020
343.15	0.0015
353.15	0.0012

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 400 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Piperazine (1) - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Viscosity, Pa*s - Liquid
303.15	0.0500	0.2000	0.0023
308.15	0.0500	0.2000	0.0020
313.15	0.0500	0.2000	0.0017
318.15	0.0500	0.2000	0.0015
323.15	0.0500	0.2000	0.0013
328.15	0.0500	0.2000	0.0012
333.15	0.0500	0.2000	0.0011
338.15	0.0500	0.2000	0.0010
343.15	0.0500	0.2000	0.0009
348.15	0.0500	0.2000	0.0008
353.15	0.0500	0.2000	0.0007
358.15	0.0500	0.2000	0.0007
363.15	0.0500	0.2000	0.0007
368.15	0.0500	0.2000	0.0007
373.15	0.0500	0.2000	0.0007
303.15	0.0500	0.3000	0.0037
308.15	0.0500	0.3000	0.0031
313.15	0.0500	0.3000	0.0026
318.15	0.0500	0.3000	0.0023
323.15	0.0500	0.3000	0.0020
328.15	0.0500	0.3000	0.0018
333.15	0.0500	0.3000	0.0015
338.15	0.0500	0.3000	0.0014
343.15	0.0500	0.3000	0.0013
348.15	0.0500	0.3000	0.0012
353.15	0.0500	0.3000	0.0010
358.15	0.0500	0.3000	0.0010
363.15	0.0500	0.3000	0.0009
368.15	0.0500	0.3000	0.0009
373.15	0.0500	0.3000	0.0008
303.15	0.0500	0.4000	0.0063
308.15	0.0500	0.4000	0.0053
313.15	0.0500	0.4000	0.0044
318.15	0.0500	0.4000	0.0038
323.15	0.0500	0.4000	0.0032
328.15	0.0500	0.4000	0.0028
333.15	0.0500	0.4000	0.0024
338.15	0.0500	0.4000	0.0022
343.15	0.0500	0.4000	0.0020
348.15	0.0500	0.4000	0.0017
353.15	0.0500	0.4000	0.0016
358.15	0.0500	0.4000	0.0016
363.15	0.0500	0.4000	0.0015
368.15	0.0500	0.4000	0.0013
373.15	0.0500	0.4000	0.0012
303.15	0.1000	0.2000	0.0033
308.15	0.1000	0.2000	0.0028
313.15	0.1000	0.2000	0.0024
318.15	0.1000	0.2000	0.0021
323.15	0.1000	0.2000	0.0018
328.15	0.1000	0.2000	0.0016
333.15	0.1000	0.2000	0.0014
338.15	0.1000	0.2000	0.0013
343.15	0.1000	0.2000	0.0012
348.15	0.1000	0.2000	0.0011
353.15	0.1000	0.2000	0.0009
358.15	0.1000	0.2000	0.0009
363.15	0.1000	0.2000	0.0008
368.15	0.1000	0.2000	0.0008
373.15	0.1000	0.2000	0.0008
303.15	0.1000	0.3000	0.0055
308.15	0.1000	0.3000	0.0046
313.15	0.1000	0.3000	0.0039
318.15	0.1000	0.3000	0.0033
323.15	0.1000	0.3000	0.0028
328.15	0.1000	0.3000	0.0025
333.15	0.1000	0.3000	0.0022
338.15	0.1000	0.3000	0.0020
343.15	0.1000	0.3000	0.0018
348.15	0.1000	0.3000	0.0016
353.15	0.1000	0.3000	0.0014
358.15	0.1000	0.3000	0.0013
363.15	0.1000	0.3000	0.0012
368.15	0.1000	0.3000	0.0011
373.15	0.1000	0.3000	0.0010
303.15	0.1000	0.4000	0.0095
308.15	0.1000	0.4000	0.0077
313.15	0.1000	0.4000	0.0063
318.15	0.1000	0.4000	0.0053
323.15	0.1000	0.4000	0.0044
328.15	0.1000	0.4000	0.0037
333.15	0.1000	0.4000	0.0032
338.15	0.1000	0.4000	0.0028
343.15	0.1000	0.4000	0.0025
348.15	0.1000	0.4000	0.0022
353.15	0.1000	0.4000	0.0020
358.15	0.1000	0.4000	0.0019
363.15	0.1000	0.4000	0.0016
368.15	0.1000	0.4000	0.0015
373.15	0.1000	0.4000	0.0014

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Piperazine (1) - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Viscosity, Pa*s - Liquid
288.00	0.0300	0.2700	0.0040
288.00	0.0600	0.2400	0.0050
288.00	0.0900	0.2100	0.0057
288.00	0.1200	0.1800	0.0062
293.00	0.0300	0.2700	0.0036
293.00	0.0600	0.2400	0.0043
293.00	0.0900	0.2100	0.0048
293.00	0.1200	0.1800	0.0053
298.00	0.0300	0.2700	0.0032
298.00	0.0600	0.2400	0.0036
298.00	0.0900	0.2100	0.0041
298.00	0.1200	0.1800	0.0044
303.00	0.0300	0.2700	0.0029
303.00	0.0600	0.2400	0.0031
303.00	0.0900	0.2100	0.0035
303.00	0.1200	0.1800	0.0038
308.00	0.0300	0.2700	0.0024
308.00	0.0600	0.2400	0.0027
308.00	0.0900	0.2100	0.0030
308.00	0.1200	0.1800	0.0032
313.00	0.0300	0.2700	0.0021
313.00	0.0600	0.2400	0.0023
313.00	0.0900	0.2100	0.0025
313.00	0.1200	0.1800	0.0028
318.00	0.0300	0.2700	0.0017
318.00	0.0600	0.2400	0.0020
318.00	0.0900	0.2100	0.0023
318.00	0.1200	0.1800	0.0025
323.00	0.0300	0.2700	0.0015
323.00	0.0600	0.2400	0.0018
323.00	0.0900	0.2100	0.0019
323.00	0.1200	0.1800	0.0021
328.00	0.0300	0.2700	0.0012
328.00	0.0600	0.2400	0.0015
328.00	0.0900	0.2100	0.0016
328.00	0.1200	0.1800	0.0018
333.00	0.0300	0.2700	0.0009
333.00	0.0600	0.2400	0.0013
333.00	0.0900	0.2100	0.0014
333.00	0.1200	0.1800	0.0015

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Amount concentration (molarity), mol/dm3 of Methyldiethanolamine (2) - Liquid	Amount concentration (molarity), mol/dm3 of Piperazine (1) - Liquid	Viscosity, Pa*s - Liquid
293.15	1.0000	0.0000	0.0016
293.15	1.0000	0.2500	0.0018
293.15	1.0000	0.5000	0.0020
293.15	1.0000	0.7500	0.0023
293.15	1.0000	1.0000	0.0026
293.15	2.0	0.0000	0.0027
293.15	2.0	0.2500	0.0031
293.15	2.0	0.5000	0.0036
293.15	2.0	0.7500	0.0041
293.15	2.0	1.0000	0.0047
293.15	3.0	0.0000	0.0048
293.15	3.0	0.2500	0.0056
293.15	3.0	0.5000	0.0065
293.15	3.0	0.7500	0.0080
293.15	3.0	1.0000	0.0091
293.15	4.0	0.0000	0.0096
293.15	4.0	0.2500	0.0109
293.15	4.0	0.5000	0.0131
293.15	4.0	0.7500	0.0163
293.15	4.0	1.0000	0.0197
298.15	1.0000	0.0000	0.0014
298.15	1.0000	0.2500	0.0015
298.15	1.0000	0.5000	0.0017
298.15	1.0000	0.7500	0.0020
298.15	1.0000	1.0000	0.0022
298.15	2.0	0.0000	0.0023
298.15	2.0	0.2500	0.0026
298.15	2.0	0.5000	0.0030
298.15	2.0	0.7500	0.0034
298.15	2.0	1.0000	0.0039
298.15	3.0	0.0000	0.0039
298.15	3.0	0.2500	0.0046
298.15	3.0	0.5000	0.0053
298.15	3.0	0.7500	0.0064
298.15	3.0	1.0000	0.0072
298.15	4.0	0.0000	0.0078
298.15	4.0	0.2500	0.0086
298.15	4.0	0.5000	0.0101
298.15	4.0	0.7500	0.0128
298.15	4.0	1.0000	0.0151
303.15	1.0000	0.0000	0.0012
303.15	1.0000	0.2500	0.0013
303.15	1.0000	0.5000	0.0015
303.15	1.0000	0.7500	0.0017
303.15	1.0000	1.0000	0.0019
303.15	2.0	0.0000	0.0020
303.15	2.0	0.2500	0.0022
303.15	2.0	0.5000	0.0025
303.15	2.0	0.7500	0.0029
303.15	2.0	1.0000	0.0033
303.15	3.0	0.0000	0.0033
303.15	3.0	0.2500	0.0039
303.15	3.0	0.5000	0.0044
303.15	3.0	1.0000	0.0059
303.15	4.0	0.0000	0.0062
303.15	4.0	0.2500	0.0070
303.15	4.0	0.5000	0.0081
303.15	4.0	0.7500	0.0098
303.15	4.0	1.0000	0.0117
313.15	1.0000	0.0000	0.0010
313.15	1.0000	0.2500	0.0011
313.15	1.0000	0.5000	0.0012
313.15	1.0000	0.7500	0.0013
313.15	1.0000	1.0000	0.0014
313.15	2.0	0.0000	0.0015
313.15	2.0	0.2500	0.0017
313.15	2.0	0.5000	0.0018
313.15	2.0	0.7500	0.0021
313.15	2.0	1.0000	0.0024
313.15	3.0	0.0000	0.0024
313.15	3.0	0.2500	0.0027
313.15	3.0	0.5000	0.0031
313.15	3.0	0.7500	0.0036
313.15	3.0	1.0000	0.0040
313.15	4.0	0.0000	0.0043
313.15	4.0	0.2500	0.0048
313.15	4.0	0.5000	0.0054
313.15	4.0	0.7500	0.0065
313.15	4.0	1.0000	0.0076
323.15	1.0000	0.0000	0.0008
323.15	1.0000	0.2500	0.0009
323.15	1.0000	0.5000	0.0009
323.15	1.0000	0.7500	0.0010
323.15	1.0000	1.0000	0.0011
323.15	2.0	0.0000	0.0012
323.15	2.0	0.2500	0.0013
323.15	2.0	0.5000	0.0015
323.15	2.0	0.7500	0.0016
323.15	2.0	1.0000	0.0018
323.15	3.0	0.0000	0.0018
323.15	3.0	0.2500	0.0021
323.15	3.0	0.5000	0.0023
323.15	3.0	0.7500	0.0026
323.15	3.0	1.0000	0.0029
323.15	4.0	0.0000	0.0031
323.15	4.0	0.2500	0.0034
323.15	4.0	0.5000	0.0038
323.15	4.0	0.7500	0.0044
323.15	4.0	1.0000	0.0052

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Viscosity, Pa*s - Liquid
303.15	0.3228	0.0174	0.0036
303.15	0.3228	0.0516	0.0041
303.15	0.3228	0.1035	0.0056
303.15	0.4880	0.0174	0.0069
303.15	0.4880	0.0516	0.0086
303.15	0.4880	0.1035	0.0117
313.15	0.3228	0.0174	0.0025
313.15	0.3228	0.0516	0.0030
313.15	0.3228	0.1035	0.0040
313.15	0.4880	0.0174	0.0050
313.15	0.4880	0.0516	0.0062
313.15	0.4880	0.1035	0.0084
318.15	0.3228	0.0174	0.0022
318.15	0.3228	0.0516	0.0027
318.15	0.3228	0.1035	0.0036
318.15	0.4880	0.0174	0.0044
318.15	0.4880	0.0516	0.0056
318.15	0.4880	0.1035	0.0074
323.15	0.3228	0.0174	0.0020
323.15	0.3228	0.0516	0.0024
323.15	0.3228	0.1035	0.0029
323.15	0.4880	0.0174	0.0036
323.15	0.4880	0.0516	0.0046
323.15	0.4880	0.1035	0.0063
333.15	0.3228	0.0174	0.0013
333.15	0.3228	0.0516	0.0017
333.15	0.3228	0.1035	0.0022
333.15	0.4880	0.0174	0.0027
333.15	0.4880	0.0516	0.0034
333.15	0.4880	0.1035	0.0046

Excess molar heat capacity, J/K/mol [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mole fraction of Water (3) - Liquid	Mole fraction of Piperazine (1) - Liquid	Excess molar heat capacity, J/K/mol - Liquid
303.20	0.6000	0.0800	5.88
303.20	0.6000	0.1600	10.71
303.20	0.6000	0.2400	12.48
303.20	0.7000	0.0600	5.2
303.20	0.7000	0.1200	7.39
303.20	0.7000	0.1800	9.7
303.20	0.7000	0.2400	9.4
303.20	0.8000	0.0400	4.0
303.20	0.8000	0.0800	6.31
303.20	0.8000	0.1200	6.9
303.20	0.8000	0.1600	7.0
303.20	0.9000	0.0200	2.1
303.20	0.9000	0.0400	2.8
303.20	0.9000	0.0600	3.21
303.20	0.9000	0.0800	4.01
308.20	0.6000	0.0800	6.52
308.20	0.6000	0.1600	11.42
308.20	0.6000	0.2400	13.26
308.20	0.7000	0.0600	5.92
308.20	0.7000	0.1200	8.12
308.20	0.7000	0.1800	10.44
308.20	0.7000	0.2400	10.25
308.20	0.8000	0.0400	4.62
308.20	0.8000	0.0800	6.93
308.20	0.8000	0.1200	7.57
308.20	0.8000	0.1600	7.73
308.20	0.9000	0.0200	2.47
308.20	0.9000	0.0400	3.22
308.20	0.9000	0.0600	3.61
308.20	0.9000	0.0800	4.42
313.20	0.6000	0.0800	7.15
313.20	0.6000	0.1600	12.14
313.20	0.6000	0.2400	14.06
313.20	0.7000	0.0600	6.64
313.20	0.7000	0.1200	8.84
313.20	0.7000	0.1800	11.17
313.20	0.7000	0.2400	11.1
313.20	0.8000	0.0400	5.41
313.20	0.8000	0.0800	7.55
313.20	0.8000	0.1200	8.24
313.20	0.8000	0.1600	8.46
313.20	0.9000	0.0200	2.84
313.20	0.9000	0.0400	3.64
313.20	0.9000	0.0600	4.01
313.20	0.9000	0.0800	4.82
318.20	0.6000	0.0800	7.79
318.20	0.6000	0.1600	12.7
318.20	0.6000	0.2400	14.84
318.20	0.7000	0.0600	7.35
318.20	0.7000	0.1200	9.56
318.20	0.7000	0.1800	11.91
318.20	0.7000	0.2400	11.94
318.20	0.8000	0.0400	6.0
318.20	0.8000	0.0800	8.17
318.20	0.8000	0.1200	8.91
318.20	0.8000	0.1600	9.2
318.20	0.9000	0.0200	3.21
318.20	0.9000	0.0400	4.06
318.20	0.9000	0.0600	4.41
318.20	0.9000	0.0800	5.22
323.20	0.6000	0.0800	8.43
323.20	0.6000	0.1600	13.66
323.20	0.6000	0.2400	15.62
323.20	0.7000	0.0600	8.06
323.20	0.7000	0.1200	10.27
323.20	0.7000	0.1800	12.65
323.20	0.7000	0.2400	12.78
323.20	0.8000	0.0400	6.63
323.20	0.8000	0.0800	8.78
323.20	0.8000	0.1200	9.57
323.20	0.8000	0.1600	9.93
323.20	0.9000	0.0200	3.57
323.20	0.9000	0.0400	4.47
323.20	0.9000	0.0600	4.8
323.20	0.9000	0.0800	5.61
328.20	0.6000	0.0800	9.06
328.20	0.6000	0.1600	14.36
328.20	0.6000	0.2400	16.4
328.20	0.7000	0.0600	8.78
328.20	0.7000	0.1200	10.97
328.20	0.7000	0.1800	13.38
328.20	0.7000	0.2400	13.62
328.20	0.8000	0.0400	7.3
328.20	0.8000	0.0800	9.4
328.20	0.8000	0.1200	10.24
328.20	0.8000	0.1600	10.66
328.20	0.9000	0.0200	3.93
328.20	0.9000	0.0400	4.88
328.20	0.9000	0.0600	5.19
328.20	0.9000	0.0800	6.0
333.20	0.6000	0.0800	9.7
333.20	0.6000	0.1600	15.06
333.20	0.6000	0.2400	17.84
333.20	0.7000	0.0600	9.49
333.20	0.7000	0.1200	11.69
333.20	0.7000	0.1800	14.1
333.20	0.7000	0.2400	14.45
333.20	0.8000	0.0400	7.8
333.20	0.8000	0.0800	10.01
333.20	0.8000	0.1200	10.9
333.20	0.8000	0.1600	11.4
333.20	0.9000	0.0200	4.29
333.20	0.9000	0.0400	5.29
333.20	0.9000	0.0600	5.57
333.20	0.9000	0.0800	6.38
338.20	0.6000	0.0800	10.32
338.20	0.6000	0.1600	15.77
338.20	0.6000	0.2400	18.47
338.20	0.7000	0.0600	10.2
338.20	0.7000	0.1200	12.41
338.20	0.7000	0.1800	14.84
338.20	0.7000	0.2400	15.29
338.20	0.8000	0.0400	8.52
338.20	0.8000	0.0800	10.62
338.20	0.8000	0.1200	11.56
338.20	0.8000	0.1600	12.13
338.20	0.9000	0.0200	4.66
338.20	0.9000	0.0400	5.7
338.20	0.9000	0.0600	5.95
338.20	0.9000	0.0800	6.77
343.20	0.6000	0.0800	10.93
343.20	0.6000	0.1600	16.47
343.20	0.6000	0.2400	19.09
343.20	0.7000	0.0600	10.95
343.20	0.7000	0.1200	13.12
343.20	0.7000	0.1800	15.58
343.20	0.7000	0.2400	16.13
343.20	0.8000	0.0400	9.15
343.20	0.8000	0.0800	11.23
343.20	0.8000	0.1200	12.22
343.20	0.8000	0.1600	12.86
343.20	0.9000	0.0200	5.02
343.20	0.9000	0.0400	6.11
343.20	0.9000	0.0600	6.34
343.20	0.9000	0.0800	7.16
348.20	0.6000	0.0800	11.54
348.20	0.6000	0.1600	17.17
348.20	0.6000	0.2400	19.72
348.20	0.7000	0.0600	11.68
348.20	0.7000	0.1200	13.83
348.20	0.7000	0.1800	16.33
348.20	0.7000	0.2400	16.97
348.20	0.8000	0.0400	9.54
348.20	0.8000	0.0800	11.83
348.20	0.8000	0.1200	12.88
348.20	0.8000	0.1600	13.6
348.20	0.9000	0.0200	5.38
348.20	0.9000	0.0400	6.52
348.20	0.9000	0.0600	6.73
348.20	0.9000	0.0800	7.53
353.20	0.6000	0.0800	12.15
353.20	0.6000	0.1600	17.83
353.20	0.6000	0.2400	20.36
353.20	0.7000	0.0600	12.4
353.20	0.7000	0.1200	14.53
353.20	0.7000	0.1800	17.07
353.20	0.7000	0.2400	17.8
353.20	0.8000	0.0400	9.99
353.20	0.8000	0.0800	12.43
353.20	0.8000	0.1200	13.54
353.20	0.8000	0.1600	14.34
353.20	0.9000	0.0200	5.74
353.20	0.9000	0.0400	6.93
353.20	0.9000	0.0600	7.12
353.20	0.9000	0.0800	7.91

Excess molar heat capacity, J/K/mol [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mole fraction of Water (3) - Liquid	Mole fraction of Piperazine (1) - Liquid	Excess molar heat capacity, J/K/mol - Liquid
303.20	0.6000	0.0800	5.88
303.20	0.6000	0.1600	10.71
303.20	0.6000	0.2400	12.48
303.20	0.7000	0.0600	5.2
303.20	0.7000	0.1200	7.39
303.20	0.7000	0.1800	9.7
303.20	0.7000	0.2400	9.4
303.20	0.8000	0.0400	4.0
303.20	0.8000	0.0800	6.31
303.20	0.8000	0.1200	6.9
303.20	0.8000	0.1600	7.0
303.20	0.9000	0.0200	2.1
303.20	0.9000	0.0400	2.8
303.20	0.9000	0.0600	3.21
303.20	0.9000	0.0800	4.01
308.20	0.6000	0.0800	6.52
308.20	0.6000	0.1600	11.42
308.20	0.6000	0.2400	13.26
308.20	0.7000	0.0600	5.92
308.20	0.7000	0.1200	8.12
308.20	0.7000	0.1800	10.44
308.20	0.7000	0.2400	10.25
308.20	0.8000	0.0400	4.62
308.20	0.8000	0.0800	6.93
308.20	0.8000	0.1200	7.57
308.20	0.8000	0.1600	7.73
308.20	0.9000	0.0200	2.47
308.20	0.9000	0.0400	3.22
308.20	0.9000	0.0600	3.61
308.20	0.9000	0.0800	4.42
313.20	0.6000	0.0800	7.15
313.20	0.6000	0.1600	12.14
313.20	0.6000	0.2400	14.06
313.20	0.7000	0.0600	6.64
313.20	0.7000	0.1200	8.84
313.20	0.7000	0.1800	11.17
313.20	0.7000	0.2400	11.1
313.20	0.8000	0.0400	5.41
313.20	0.8000	0.0800	7.55
313.20	0.8000	0.1200	8.24
313.20	0.8000	0.1600	8.46
313.20	0.9000	0.0200	2.84
313.20	0.9000	0.0400	3.64
313.20	0.9000	0.0600	4.01
313.20	0.9000	0.0800	4.82
318.20	0.6000	0.0800	7.79
318.20	0.6000	0.1600	12.7
318.20	0.6000	0.2400	14.84
318.20	0.7000	0.0600	7.35
318.20	0.7000	0.1200	9.56
318.20	0.7000	0.1800	11.91
318.20	0.7000	0.2400	11.94
318.20	0.8000	0.0400	6.0
318.20	0.8000	0.0800	8.17
318.20	0.8000	0.1200	8.91
318.20	0.8000	0.1600	9.2
318.20	0.9000	0.0200	3.21
318.20	0.9000	0.0400	4.06
318.20	0.9000	0.0600	4.41
318.20	0.9000	0.0800	5.22
323.20	0.6000	0.0800	8.43
323.20	0.6000	0.1600	13.66
323.20	0.6000	0.2400	15.62
323.20	0.7000	0.0600	8.06
323.20	0.7000	0.1200	10.27
323.20	0.7000	0.1800	12.65
323.20	0.7000	0.2400	12.78
323.20	0.8000	0.0400	6.63
323.20	0.8000	0.0800	8.78
323.20	0.8000	0.1200	9.57
323.20	0.8000	0.1600	9.93
323.20	0.9000	0.0200	3.57
323.20	0.9000	0.0400	4.47
323.20	0.9000	0.0600	4.8
323.20	0.9000	0.0800	5.61
328.20	0.6000	0.0800	9.06
328.20	0.6000	0.1600	14.36
328.20	0.6000	0.2400	16.4
328.20	0.7000	0.0600	8.78
328.20	0.7000	0.1200	10.97
328.20	0.7000	0.1800	13.38
328.20	0.7000	0.2400	13.62
328.20	0.8000	0.0400	7.3
328.20	0.8000	0.0800	9.4
328.20	0.8000	0.1200	10.24
328.20	0.8000	0.1600	10.66
328.20	0.9000	0.0200	3.93
328.20	0.9000	0.0400	4.88
328.20	0.9000	0.0600	5.19
328.20	0.9000	0.0800	6.0
333.20	0.6000	0.0800	9.7
333.20	0.6000	0.1600	15.06
333.20	0.6000	0.2400	17.84
333.20	0.7000	0.0600	9.49
333.20	0.7000	0.1200	11.69
333.20	0.7000	0.1800	14.1
333.20	0.7000	0.2400	14.45
333.20	0.8000	0.0400	7.8
333.20	0.8000	0.0800	10.01
333.20	0.8000	0.1200	10.9
333.20	0.8000	0.1600	11.4
333.20	0.9000	0.0200	4.29
333.20	0.9000	0.0400	5.29
333.20	0.9000	0.0600	5.57
333.20	0.9000	0.0800	6.38
338.20	0.6000	0.0800	10.32
338.20	0.6000	0.1600	15.77
338.20	0.6000	0.2400	18.47
338.20	0.7000	0.0600	10.2
338.20	0.7000	0.1200	12.41
338.20	0.7000	0.1800	14.84
338.20	0.7000	0.2400	15.29
338.20	0.8000	0.0400	8.52
338.20	0.8000	0.0800	10.62
338.20	0.8000	0.1200	11.56
338.20	0.8000	0.1600	12.13
338.20	0.9000	0.0200	4.66
338.20	0.9000	0.0400	5.7
338.20	0.9000	0.0600	5.95
338.20	0.9000	0.0800	6.77
343.20	0.6000	0.0800	10.93
343.20	0.6000	0.1600	16.47
343.20	0.6000	0.2400	19.09
343.20	0.7000	0.0600	10.95
343.20	0.7000	0.1200	13.12
343.20	0.7000	0.1800	15.58
343.20	0.7000	0.2400	16.13
343.20	0.8000	0.0400	9.15
343.20	0.8000	0.0800	11.23
343.20	0.8000	0.1200	12.22
343.20	0.8000	0.1600	12.86
343.20	0.9000	0.0200	5.02
343.20	0.9000	0.0400	6.11
343.20	0.9000	0.0600	6.34
343.20	0.9000	0.0800	7.16
348.20	0.6000	0.0800	11.54
348.20	0.6000	0.1600	17.17
348.20	0.6000	0.2400	19.72
348.20	0.7000	0.0600	11.68
348.20	0.7000	0.1200	13.83
348.20	0.7000	0.1800	16.33
348.20	0.7000	0.2400	16.97
348.20	0.8000	0.0400	9.54
348.20	0.8000	0.0800	11.83
348.20	0.8000	0.1200	12.88
348.20	0.8000	0.1600	13.6
348.20	0.9000	0.0200	5.38
348.20	0.9000	0.0400	6.52
348.20	0.9000	0.0600	6.73
348.20	0.9000	0.0800	7.53
353.20	0.6000	0.0800	12.15
353.20	0.6000	0.1600	17.83
353.20	0.6000	0.2400	20.36
353.20	0.7000	0.0600	12.4
353.20	0.7000	0.1200	14.53
353.20	0.7000	0.1800	17.07
353.20	0.7000	0.2400	17.8
353.20	0.8000	0.0400	9.99
353.20	0.8000	0.0800	12.43
353.20	0.8000	0.1200	13.54
353.20	0.8000	0.1600	14.34
353.20	0.9000	0.0200	5.74
353.20	0.9000	0.0400	6.93
353.20	0.9000	0.0600	7.12
353.20	0.9000	0.0800	7.91

Refractive index (Na D-line) [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Refractive index (Na D-line) - Liquid
303.15	0.3228	0.0174	1.3649
303.15	0.3228	0.0516	1.372
303.15	0.3228	0.1035	1.3782
303.15	0.4880	0.0174	1.3712
303.15	0.4880	0.0516	1.3775
303.15	0.4880	0.1035	1.3829
313.15	0.3228	0.0174	1.3599
313.15	0.3228	0.0516	1.3646
313.15	0.3228	0.1035	1.3724
313.15	0.4880	0.0174	1.3658
313.15	0.4880	0.0516	1.3728
313.15	0.4880	0.1035	1.3776
318.15	0.3228	0.0174	1.3572
318.15	0.3228	0.0516	1.3603
318.15	0.3228	0.1035	1.3673
318.15	0.4880	0.0174	1.3623
318.15	0.4880	0.0516	1.3694
318.15	0.4880	0.1035	1.3742
323.15	0.3228	0.0174	1.3531
323.15	0.3228	0.0516	1.357
323.15	0.3228	0.1035	1.3617
323.15	0.4880	0.0174	1.3598
323.15	0.4880	0.0516	1.3666
323.15	0.4880	0.1035	1.3712
333.15	0.3228	0.0174	1.3462
333.15	0.3228	0.0516	1.3517
333.15	0.3228	0.1035	1.3551
333.15	0.4880	0.0174	1.355
333.15	0.4880	0.0516	1.3614
333.15	0.4880	0.1035	1.3674

Refractive index (Na D-line) [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Refractive index (Na D-line) - Liquid
303.15	0.3228	0.0174	1.3649
303.15	0.3228	0.0516	1.372
303.15	0.3228	0.1035	1.3782
303.15	0.4880	0.0174	1.3712
303.15	0.4880	0.0516	1.3775
303.15	0.4880	0.1035	1.3829
313.15	0.3228	0.0174	1.3599
313.15	0.3228	0.0516	1.3646
313.15	0.3228	0.1035	1.3724
313.15	0.4880	0.0174	1.3658
313.15	0.4880	0.0516	1.3728
313.15	0.4880	0.1035	1.3776
318.15	0.3228	0.0174	1.3572
318.15	0.3228	0.0516	1.3603
318.15	0.3228	0.1035	1.3673
318.15	0.4880	0.0174	1.3623
318.15	0.4880	0.0516	1.3694
318.15	0.4880	0.1035	1.3742
323.15	0.3228	0.0174	1.3531
323.15	0.3228	0.0516	1.357
323.15	0.3228	0.1035	1.3617
323.15	0.4880	0.0174	1.3598
323.15	0.4880	0.0516	1.3666
323.15	0.4880	0.1035	1.3712
333.15	0.3228	0.0174	1.3462
333.15	0.3228	0.0516	1.3517
333.15	0.3228	0.1035	1.3551
333.15	0.4880	0.0174	1.355
333.15	0.4880	0.0516	1.3614
333.15	0.4880	0.1035	1.3674

Mass density, kg/m3 [ref]

Operational conditions:

• Molality, mol/kg = 4.912 (Liquid)
• Molality, mol/kg = 1.022 (Liquid)
• Pressure, kPa = 97.7 (Liquid)

Temperature, K - Liquid	Mass density, kg/m3 - Liquid
293.15	1037.0
303.15	1032.0
313.15	1026.0
323.15	1019.0
333.15	1013.0
343.15	1006.0
353.15	998.0

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Piperazine (1) - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass density, kg/m3 - Liquid
288.00	0.0300	0.2700	1026.2
288.00	0.0600	0.2400	1026.7
288.00	0.0900	0.2100	1027.1
288.00	0.1200	0.1800	1028.1
293.00	0.0300	0.2700	1023.9
293.00	0.0600	0.2400	1024.5
293.00	0.0900	0.2100	1025.3
293.00	0.1200	0.1800	1026.4
298.00	0.0300	0.2700	1021.8
298.00	0.0600	0.2400	1022.5
298.00	0.0900	0.2100	1022.9
298.00	0.1200	0.1800	1023.9
303.00	0.0300	0.2700	1019.7
303.00	0.0600	0.2400	1020.0
303.00	0.0900	0.2100	1020.3
303.00	0.1200	0.1800	1021.6
308.00	0.0300	0.2700	1017.3
308.00	0.0600	0.2400	1017.7
308.00	0.0900	0.2100	1017.9
308.00	0.1200	0.1800	1018.5
313.00	0.0300	0.2700	1015.0
313.00	0.0600	0.2400	1015.2
313.00	0.0900	0.2100	1015.4
313.00	0.1200	0.1800	1016.0
318.00	0.0300	0.2700	1012.3
318.00	0.0600	0.2400	1012.6
318.00	0.0900	0.2100	1012.8
318.00	0.1200	0.1800	1013.1
323.00	0.0300	0.2700	1009.5
323.00	0.0600	0.2400	1009.8
323.00	0.0900	0.2100	1010.0
323.00	0.1200	0.1800	1010.3
328.00	0.0300	0.2700	1006.4
328.00	0.0600	0.2400	1006.6
328.00	0.0900	0.2100	1006.8
328.00	0.1200	0.1800	1007.2
333.00	0.0300	0.2700	1003.2
333.00	0.0600	0.2400	1003.5
333.00	0.0900	0.2100	1003.8
333.00	0.1200	0.1800	1004.0

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Amount concentration (molarity), mol/dm3 of Methyldiethanolamine (2) - Liquid	Amount concentration (molarity), mol/dm3 of Piperazine (1) - Liquid	Mass density, kg/m3 - Liquid
293.15	1.0000	0.0000	1008.67
293.15	1.0000	0.2500	1010.12
293.15	1.0000	0.5000	1011.41
293.15	1.0000	0.7500	1013.04
293.15	1.0000	1.0000	1014.45
293.15	2.0	0.0000	1020.1
293.15	2.0	0.2500	1021.69
293.15	2.0	0.5000	1023.48
293.15	2.0	0.7500	1024.98
293.15	2.0	1.0000	1026.53
293.15	3.0	0.0000	1032.14
293.15	3.0	0.2500	1032.91
293.15	3.0	0.5000	1034.37
293.15	3.0	0.7500	1035.94
293.15	3.0	1.0000	1037.24
293.15	4.0	0.0000	1042.47
293.15	4.0	0.2500	1043.56
293.15	4.0	0.5000	1044.73
293.15	4.0	0.7500	1046.36
293.15	4.0	1.0000	1047.85
298.15	1.0000	0.0000	1007.14
298.15	1.0000	0.2500	1008.48
298.15	1.0000	0.5000	1009.76
298.15	1.0000	0.7500	1011.29
298.15	1.0000	1.0000	1012.61
298.15	2.0	0.0000	1018.87
298.15	2.0	0.2500	1019.68
298.15	2.0	0.5000	1021.31
298.15	2.0	0.7500	1022.67
298.15	2.0	1.0000	1024.2
298.15	3.0	0.0000	1028.97
298.15	3.0	0.2500	1030.42
298.15	3.0	0.5000	1031.82
298.15	3.0	1.0000	1034.86
298.15	4.0	0.0000	1039.68
298.15	4.0	0.2500	1040.58
298.15	4.0	0.5000	1041.71
298.15	4.0	0.7500	1043.27
298.15	4.0	1.0000	1044.61
303.15	1.0000	0.0000	1005.56
303.15	1.0000	0.2500	1006.8
303.15	1.0000	0.5000	1007.88
303.15	1.0000	0.7500	1009.42
303.15	1.0000	1.0000	1010.68
303.15	2.0	0.0000	1016.09
303.15	2.0	0.2500	1017.47
303.15	2.0	0.5000	1019.05
303.15	2.0	0.7500	1020.36
303.15	2.0	1.0000	1021.83
303.15	3.0	0.0000	1026.49
303.15	3.0	0.2500	1027.76
303.15	3.0	0.5000	1029.26
303.15	3.0	1.0000	1031.96
303.15	4.0	0.0000	1036.64
303.15	4.0	0.2500	1038.36
303.15	4.0	0.5000	1039.27
303.15	4.0	0.7500	1040.64
303.15	4.0	1.0000	1041.92
313.15	1.0000	0.0000	1001.56
313.15	1.0000	0.2500	1003.41
313.15	1.0000	0.5000	1003.81
313.15	1.0000	0.7500	1005.05
313.15	1.0000	1.0000	1006.22
313.15	2.0	0.0000	1011.33
313.15	2.0	0.2500	1012.71
313.15	2.0	0.5000	1014.11
313.15	2.0	0.7500	1015.21
313.15	2.0	1.0000	1016.31
313.15	3.0	0.0000	1020.97
313.15	3.0	0.2500	1022.22
313.15	3.0	0.5000	1023.46
313.15	3.0	0.7500	1025.05
313.15	3.0	1.0000	1025.86
313.15	4.0	0.0000	1030.46
313.15	4.0	0.2500	1030.98
313.15	4.0	0.5000	1031.89
313.15	4.0	0.7500	1033.11
313.15	4.0	1.0000	1034.12
323.15	1.0000	0.0000	996.91
323.15	1.0000	0.2500	997.6
323.15	1.0000	0.5000	999.05
323.15	1.0000	0.7500	1000.24
323.15	1.0000	1.0000	1001.25
323.15	2.0	0.0000	1006.2
323.15	2.0	0.2500	1007.42
323.15	2.0	0.5000	1008.71
323.15	2.0	0.7500	1009.59
323.15	2.0	1.0000	1010.68
323.15	3.0	0.0000	1015.02
323.15	3.0	0.2500	1016.11
323.15	3.0	0.5000	1017.31
323.15	3.0	0.7500	1018.71
323.15	3.0	1.0000	1019.45
323.15	4.0	0.0000	1024.04
323.15	4.0	0.2500	1024.21
323.15	4.0	0.5000	1025.01
323.15	4.0	0.7500	1026.05
323.15	4.0	1.0000	1026.91

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Mass density, kg/m3 - Liquid
298.15	0.3228	0.0174	1024.783
298.15	0.3228	0.0516	1025.327
298.15	0.3228	0.1035	1026.382
298.15	0.4880	0.0174	1036.829
298.15	0.4880	0.0516	1037.365
298.15	0.4880	0.1035	1038.328
303.15	0.3228	0.0174	1022.845
303.15	0.3228	0.0516	1023.638
303.15	0.3228	0.1035	1024.216
303.15	0.4880	0.0174	1034.515
303.15	0.4880	0.0516	1035.038
303.15	0.4880	0.1035	1035.96
308.15	0.3228	0.0174	1020.478
308.15	0.3228	0.0516	1021.327
308.15	0.3228	0.1035	1022.135
308.15	0.4880	0.0174	1032.086
308.15	0.4880	0.0516	1032.595
308.15	0.4880	0.1035	1033.48
313.15	0.3228	0.0174	1018.342
313.15	0.3228	0.0516	1018.923
313.15	0.3228	0.1035	1019.582
313.15	0.4880	0.0174	1029.57
313.15	0.4880	0.0516	1030.069
313.15	0.4880	0.1035	1030.918
318.15	0.3228	0.0174	1015.946
318.15	0.3228	0.0516	1016.452
318.15	0.3228	0.1035	1017.222
318.15	0.4880	0.0174	1026.868
318.15	0.4880	0.0516	1027.357
318.15	0.4880	0.1035	1028.172
323.15	0.3228	0.0174	1013.41
323.15	0.3228	0.0516	1013.896
323.15	0.3228	0.1035	1014.68
323.15	0.4880	0.0174	1024.008
323.15	0.4880	0.0516	1024.487
323.15	0.4880	0.1035	1025.274
328.15	0.3228	0.0174	1010.647
328.15	0.3228	0.0516	1011.128
328.15	0.3228	0.1035	1011.882
328.15	0.4880	0.0174	1021.093
328.15	0.4880	0.0516	1021.576
328.15	0.4880	0.1035	1022.335
333.15	0.3228	0.0174	1007.861
333.15	0.3228	0.0516	1008.326
333.15	0.3228	0.1035	1008.763
333.15	0.4880	0.0174	1018.037
333.15	0.4880	0.0516	1018.498
333.15	0.4880	0.1035	1018.942
338.15	0.3228	0.0174	1004.814
338.15	0.3228	0.0516	1005.21
338.15	0.3228	0.1035	1005.946
338.15	0.4880	0.0174	1014.921
338.15	0.4880	0.0516	1015.341
338.15	0.4880	0.1035	1016.063

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Molality, mol/kg of Methyldiethanolamine (2) - Liquid	Molality, mol/kg of Piperazine (1) - Liquid	Temperature, K - Liquid	Mass density, kg/m3 - Liquid
2.227	1.966	289.00	1026.0
2.227	1.966	291.00	1025.0
2.227	1.966	293.00	1024.0
2.227	1.966	295.10	1023.0
2.227	1.966	297.10	1023.0
2.227	1.966	299.10	1022.0
2.227	1.966	301.10	1021.0
2.227	1.966	303.10	1020.0
4.213	2.01	289.00	1037.0
4.213	2.01	291.00	1036.0
4.213	2.01	293.00	1035.0
4.213	2.01	295.10	1034.0
4.213	2.01	297.10	1033.0
4.213	2.01	299.10	1032.0
4.213	2.01	301.10	1031.0
4.213	2.01	303.10	1030.0
7.831	2.072	289.00	1049.0
7.831	2.072	291.00	1047.0
7.831	2.072	293.00	1046.0
7.831	2.072	295.10	1045.0
7.831	2.072	297.10	1044.0
7.831	2.072	299.10	1042.0
7.831	2.072	301.10	1041.0
7.831	2.072	303.10	1040.0

Mass density, kg/m3 [ref]

Operational conditions:

• Pressure, kPa = 101 (Liquid)
• Temperature, K = 293.15 (Liquid)

Fixed		Measured
Molality, mol/kg of Methyldiethanolamine (2) - Liquid	Molality, mol/kg of Piperazine (1) - Liquid	Mass density, kg/m3 - Liquid
0.0000	0.2628	999.1
0.0000	0.4689	999.8
0.0000	0.7153	1000.8
0.0000	0.9675	1001.8
0.0000	1.2676	1003.1
0.0000	1.4477	1004.0
1.8666	0.0000	1014.8
1.9335	0.1798	1016.0
1.9969	0.6039	1017.8
2.0076	0.3158	1016.9
2.015	0.4956	1017.6
2.0673	0.4086	1017.7
2.1347	0.0982	1017.2
3.9955	0.2085	1029.4
4.0002	0.8217	1031.0
4.0066	0.9868	1031.4
4.0175	0.4207	1030.1
4.0236	1.2075	1032.1
4.0333	0.6007	1030.6
4.1177	0.0000	1029.6
5.8659	0.6041	1038.6
5.9558	1.2241	1040.0
5.9889	1.5246	1040.7
5.9889	1.7899	1041.1
6.0334	0.9219	1039.8
6.1549	0.3085	1039.2
6.1887	0.0000	1038.8
7.1858	1.1205	1043.6
7.7262	2.2749	1046.2
7.9747	0.8007	1045.1
7.9823	1.5034	1045.9
8.0369	0.4020	1044.9
8.1186	0.0000	1044.8
8.2182	1.8539	1046.7
8.6698	3.3955	1048.7
9.2092	0.4434	1047.4
9.511	0.9344	1048.4
9.878	2.5195	1049.9
9.908	3.0019	1050.1
10.032	0.0000	1048.6
10.035	1.5528	1049.5
10.211	2.0117	1049.9
10.788	2.8236	1050.9
11.132	2.3325	1051.1
11.444	3.3148	1051.7
11.665	0.7062	1051.2
11.907	1.2755	1051.7
11.975	1.7756	1051.8
12.099	0.0000	1051.6

Mass density, kg/m3 [ref]

Operational conditions:

• Molality, mol/kg = 4.912 (Liquid)
• Molality, mol/kg = 1.022 (Liquid)
• Pressure, kPa = 97.7 (Liquid)

Temperature, K - Liquid	Mass density, kg/m3 - Liquid
293.15	1037.0
303.15	1032.0
313.15	1026.0
323.15	1019.0
333.15	1013.0
343.15	1006.0
353.15	998.0

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Piperazine (1) - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass density, kg/m3 - Liquid
288.00	0.0300	0.2700	1026.2
288.00	0.0600	0.2400	1026.7
288.00	0.0900	0.2100	1027.1
288.00	0.1200	0.1800	1028.1
293.00	0.0300	0.2700	1023.9
293.00	0.0600	0.2400	1024.5
293.00	0.0900	0.2100	1025.3
293.00	0.1200	0.1800	1026.4
298.00	0.0300	0.2700	1021.8
298.00	0.0600	0.2400	1022.5
298.00	0.0900	0.2100	1022.9
298.00	0.1200	0.1800	1023.9
303.00	0.0300	0.2700	1019.7
303.00	0.0600	0.2400	1020.0
303.00	0.0900	0.2100	1020.3
303.00	0.1200	0.1800	1021.6
308.00	0.0300	0.2700	1017.3
308.00	0.0600	0.2400	1017.7
308.00	0.0900	0.2100	1017.9
308.00	0.1200	0.1800	1018.5
313.00	0.0300	0.2700	1015.0
313.00	0.0600	0.2400	1015.2
313.00	0.0900	0.2100	1015.4
313.00	0.1200	0.1800	1016.0
318.00	0.0300	0.2700	1012.3
318.00	0.0600	0.2400	1012.6
318.00	0.0900	0.2100	1012.8
318.00	0.1200	0.1800	1013.1
323.00	0.0300	0.2700	1009.5
323.00	0.0600	0.2400	1009.8
323.00	0.0900	0.2100	1010.0
323.00	0.1200	0.1800	1010.3
328.00	0.0300	0.2700	1006.4
328.00	0.0600	0.2400	1006.6
328.00	0.0900	0.2100	1006.8
328.00	0.1200	0.1800	1007.2
333.00	0.0300	0.2700	1003.2
333.00	0.0600	0.2400	1003.5
333.00	0.0900	0.2100	1003.8
333.00	0.1200	0.1800	1004.0

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Amount concentration (molarity), mol/dm3 of Methyldiethanolamine (2) - Liquid	Amount concentration (molarity), mol/dm3 of Piperazine (1) - Liquid	Mass density, kg/m3 - Liquid
293.15	1.0000	0.0000	1008.67
293.15	1.0000	0.2500	1010.12
293.15	1.0000	0.5000	1011.41
293.15	1.0000	0.7500	1013.04
293.15	1.0000	1.0000	1014.45
293.15	2.0	0.0000	1020.1
293.15	2.0	0.2500	1021.69
293.15	2.0	0.5000	1023.48
293.15	2.0	0.7500	1024.98
293.15	2.0	1.0000	1026.53
293.15	3.0	0.0000	1032.14
293.15	3.0	0.2500	1032.91
293.15	3.0	0.5000	1034.37
293.15	3.0	0.7500	1035.94
293.15	3.0	1.0000	1037.24
293.15	4.0	0.0000	1042.47
293.15	4.0	0.2500	1043.56
293.15	4.0	0.5000	1044.73
293.15	4.0	0.7500	1046.36
293.15	4.0	1.0000	1047.85
298.15	1.0000	0.0000	1007.14
298.15	1.0000	0.2500	1008.48
298.15	1.0000	0.5000	1009.76
298.15	1.0000	0.7500	1011.29
298.15	1.0000	1.0000	1012.61
298.15	2.0	0.0000	1018.87
298.15	2.0	0.2500	1019.68
298.15	2.0	0.5000	1021.31
298.15	2.0	0.7500	1022.67
298.15	2.0	1.0000	1024.2
298.15	3.0	0.0000	1028.97
298.15	3.0	0.2500	1030.42
298.15	3.0	0.5000	1031.82
298.15	3.0	1.0000	1034.86
298.15	4.0	0.0000	1039.68
298.15	4.0	0.2500	1040.58
298.15	4.0	0.5000	1041.71
298.15	4.0	0.7500	1043.27
298.15	4.0	1.0000	1044.61
303.15	1.0000	0.0000	1005.56
303.15	1.0000	0.2500	1006.8
303.15	1.0000	0.5000	1007.88
303.15	1.0000	0.7500	1009.42
303.15	1.0000	1.0000	1010.68
303.15	2.0	0.0000	1016.09
303.15	2.0	0.2500	1017.47
303.15	2.0	0.5000	1019.05
303.15	2.0	0.7500	1020.36
303.15	2.0	1.0000	1021.83
303.15	3.0	0.0000	1026.49
303.15	3.0	0.2500	1027.76
303.15	3.0	0.5000	1029.26
303.15	3.0	1.0000	1031.96
303.15	4.0	0.0000	1036.64
303.15	4.0	0.2500	1038.36
303.15	4.0	0.5000	1039.27
303.15	4.0	0.7500	1040.64
303.15	4.0	1.0000	1041.92
313.15	1.0000	0.0000	1001.56
313.15	1.0000	0.2500	1003.41
313.15	1.0000	0.5000	1003.81
313.15	1.0000	0.7500	1005.05
313.15	1.0000	1.0000	1006.22
313.15	2.0	0.0000	1011.33
313.15	2.0	0.2500	1012.71
313.15	2.0	0.5000	1014.11
313.15	2.0	0.7500	1015.21
313.15	2.0	1.0000	1016.31
313.15	3.0	0.0000	1020.97
313.15	3.0	0.2500	1022.22
313.15	3.0	0.5000	1023.46
313.15	3.0	0.7500	1025.05
313.15	3.0	1.0000	1025.86
313.15	4.0	0.0000	1030.46
313.15	4.0	0.2500	1030.98
313.15	4.0	0.5000	1031.89
313.15	4.0	0.7500	1033.11
313.15	4.0	1.0000	1034.12
323.15	1.0000	0.0000	996.91
323.15	1.0000	0.2500	997.6
323.15	1.0000	0.5000	999.05
323.15	1.0000	0.7500	1000.24
323.15	1.0000	1.0000	1001.25
323.15	2.0	0.0000	1006.2
323.15	2.0	0.2500	1007.42
323.15	2.0	0.5000	1008.71
323.15	2.0	0.7500	1009.59
323.15	2.0	1.0000	1010.68
323.15	3.0	0.0000	1015.02
323.15	3.0	0.2500	1016.11
323.15	3.0	0.5000	1017.31
323.15	3.0	0.7500	1018.71
323.15	3.0	1.0000	1019.45
323.15	4.0	0.0000	1024.04
323.15	4.0	0.2500	1024.21
323.15	4.0	0.5000	1025.01
323.15	4.0	0.7500	1026.05
323.15	4.0	1.0000	1026.91

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Mass density, kg/m3 - Liquid
298.15	0.3228	0.0174	1024.783
298.15	0.3228	0.0516	1025.327
298.15	0.3228	0.1035	1026.382
298.15	0.4880	0.0174	1036.829
298.15	0.4880	0.0516	1037.365
298.15	0.4880	0.1035	1038.328
303.15	0.3228	0.0174	1022.845
303.15	0.3228	0.0516	1023.638
303.15	0.3228	0.1035	1024.216
303.15	0.4880	0.0174	1034.515
303.15	0.4880	0.0516	1035.038
303.15	0.4880	0.1035	1035.96
308.15	0.3228	0.0174	1020.478
308.15	0.3228	0.0516	1021.327
308.15	0.3228	0.1035	1022.135
308.15	0.4880	0.0174	1032.086
308.15	0.4880	0.0516	1032.595
308.15	0.4880	0.1035	1033.48
313.15	0.3228	0.0174	1018.342
313.15	0.3228	0.0516	1018.923
313.15	0.3228	0.1035	1019.582
313.15	0.4880	0.0174	1029.57
313.15	0.4880	0.0516	1030.069
313.15	0.4880	0.1035	1030.918
318.15	0.3228	0.0174	1015.946
318.15	0.3228	0.0516	1016.452
318.15	0.3228	0.1035	1017.222
318.15	0.4880	0.0174	1026.868
318.15	0.4880	0.0516	1027.357
318.15	0.4880	0.1035	1028.172
323.15	0.3228	0.0174	1013.41
323.15	0.3228	0.0516	1013.896
323.15	0.3228	0.1035	1014.68
323.15	0.4880	0.0174	1024.008
323.15	0.4880	0.0516	1024.487
323.15	0.4880	0.1035	1025.274
328.15	0.3228	0.0174	1010.647
328.15	0.3228	0.0516	1011.128
328.15	0.3228	0.1035	1011.882
328.15	0.4880	0.0174	1021.093
328.15	0.4880	0.0516	1021.576
328.15	0.4880	0.1035	1022.335
333.15	0.3228	0.0174	1007.861
333.15	0.3228	0.0516	1008.326
333.15	0.3228	0.1035	1008.763
333.15	0.4880	0.0174	1018.037
333.15	0.4880	0.0516	1018.498
333.15	0.4880	0.1035	1018.942
338.15	0.3228	0.0174	1004.814
338.15	0.3228	0.0516	1005.21
338.15	0.3228	0.1035	1005.946
338.15	0.4880	0.0174	1014.921
338.15	0.4880	0.0516	1015.341
338.15	0.4880	0.1035	1016.063

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed			Measured
Molality, mol/kg of Methyldiethanolamine (2) - Liquid	Molality, mol/kg of Piperazine (1) - Liquid	Temperature, K - Liquid	Mass density, kg/m3 - Liquid
2.227	1.966	289.00	1026.0
2.227	1.966	291.00	1025.0
2.227	1.966	293.00	1024.0
2.227	1.966	295.10	1023.0
2.227	1.966	297.10	1023.0
2.227	1.966	299.10	1022.0
2.227	1.966	301.10	1021.0
2.227	1.966	303.10	1020.0
4.213	2.01	289.00	1037.0
4.213	2.01	291.00	1036.0
4.213	2.01	293.00	1035.0
4.213	2.01	295.10	1034.0
4.213	2.01	297.10	1033.0
4.213	2.01	299.10	1032.0
4.213	2.01	301.10	1031.0
4.213	2.01	303.10	1030.0
7.831	2.072	289.00	1049.0
7.831	2.072	291.00	1047.0
7.831	2.072	293.00	1046.0
7.831	2.072	295.10	1045.0
7.831	2.072	297.10	1044.0
7.831	2.072	299.10	1042.0
7.831	2.072	301.10	1041.0
7.831	2.072	303.10	1040.0

Mass density, kg/m3 [ref]

Operational conditions:

• Pressure, kPa = 101 (Liquid)
• Temperature, K = 293.15 (Liquid)

Fixed		Measured
Molality, mol/kg of Methyldiethanolamine (2) - Liquid	Molality, mol/kg of Piperazine (1) - Liquid	Mass density, kg/m3 - Liquid
0.0000	0.2628	999.1
0.0000	0.4689	999.8
0.0000	0.7153	1000.8
0.0000	0.9675	1001.8
0.0000	1.2676	1003.1
0.0000	1.4477	1004.0
1.8666	0.0000	1014.8
1.9335	0.1798	1016.0
1.9969	0.6039	1017.8
2.0076	0.3158	1016.9
2.015	0.4956	1017.6
2.0673	0.4086	1017.7
2.1347	0.0982	1017.2
3.9955	0.2085	1029.4
4.0002	0.8217	1031.0
4.0066	0.9868	1031.4
4.0175	0.4207	1030.1
4.0236	1.2075	1032.1
4.0333	0.6007	1030.6
4.1177	0.0000	1029.6
5.8659	0.6041	1038.6
5.9558	1.2241	1040.0
5.9889	1.5246	1040.7
5.9889	1.7899	1041.1
6.0334	0.9219	1039.8
6.1549	0.3085	1039.2
6.1887	0.0000	1038.8
7.1858	1.1205	1043.6
7.7262	2.2749	1046.2
7.9747	0.8007	1045.1
7.9823	1.5034	1045.9
8.0369	0.4020	1044.9
8.1186	0.0000	1044.8
8.2182	1.8539	1046.7
8.6698	3.3955	1048.7
9.2092	0.4434	1047.4
9.511	0.9344	1048.4
9.878	2.5195	1049.9
9.908	3.0019	1050.1
10.032	0.0000	1048.6
10.035	1.5528	1049.5
10.211	2.0117	1049.9
10.788	2.8236	1050.9
11.132	2.3325	1051.1
11.444	3.3148	1051.7
11.665	0.7062	1051.2
11.907	1.2755	1051.7
11.975	1.7756	1051.8
12.099	0.0000	1051.6

Surface tension liquid-gas, N/m [ref]

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Surface tension liquid-gas, N/m - Liquid
293.15	0.1180	0.0210	0.0611
293.15	0.1180	0.0420	0.0605
293.15	0.1180	0.0630	0.0604
293.15	0.1180	0.0840	0.0600
293.15	0.2360	0.0210	0.0573
293.15	0.2360	0.0420	0.0569
293.15	0.2360	0.0630	0.0566
293.15	0.2360	0.0840	0.0562
293.15	0.3540	0.0210	0.0536
293.15	0.3540	0.0420	0.0534
293.15	0.3540	0.0630	0.0533
293.15	0.3540	0.0840	0.0525
303.15	0.1180	0.0210	0.0593
303.15	0.1180	0.0420	0.0592
303.15	0.1180	0.0630	0.0591
303.15	0.1180	0.0840	0.0583
303.15	0.2360	0.0210	0.0559
303.15	0.2360	0.0420	0.0558
303.15	0.2360	0.0630	0.0549
303.15	0.2360	0.0840	0.0544
303.15	0.3540	0.0210	0.0518
303.15	0.3540	0.0420	0.0512
303.15	0.3540	0.0630	0.0507
303.15	0.3540	0.0840	0.0505
313.15	0.1180	0.0210	0.0576
313.15	0.1180	0.0420	0.0574
313.15	0.1180	0.0630	0.0571
313.15	0.1180	0.0840	0.0570
313.15	0.2360	0.0210	0.0547
313.15	0.2360	0.0420	0.0542
313.15	0.2360	0.0630	0.0538
313.15	0.2360	0.0840	0.0526
313.15	0.3540	0.0210	0.0503
313.15	0.3540	0.0420	0.0500
313.15	0.3540	0.0630	0.0498
313.15	0.3540	0.0840	0.0495
323.15	0.1180	0.0210	0.0561
323.15	0.1180	0.0420	0.0560
323.15	0.1180	0.0630	0.0558
323.15	0.1180	0.0840	0.0555
323.15	0.2360	0.0210	0.0530
323.15	0.2360	0.0420	0.0526
323.15	0.2360	0.0630	0.0519
323.15	0.2360	0.0840	0.0510
323.15	0.3540	0.0210	0.0490
323.15	0.3540	0.0420	0.0484
323.15	0.3540	0.0630	0.0479
323.15	0.3540	0.0840	0.0475

Surface tension liquid-gas, N/m [ref]

Operational condition: Mass fraction = 0.7 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mass fraction of Piperazine (1) - Liquid	Surface tension liquid-gas, N/m - Liquid
293.00	0.0300	0.0557
293.00	0.0600	0.0559
293.00	0.0900	0.0564
293.00	0.1200	0.0569
298.00	0.0300	0.0549
298.00	0.0600	0.0550
298.00	0.0900	0.0556
298.00	0.1200	0.0558
303.00	0.0300	0.0541
303.00	0.0600	0.0547
303.00	0.0900	0.0551
303.00	0.1200	0.0553
308.00	0.0300	0.0530
308.00	0.0600	0.0533
308.00	0.0900	0.0542
308.00	0.1200	0.0547
313.00	0.0300	0.0524
313.00	0.0600	0.0528
313.00	0.0900	0.0533
313.00	0.1200	0.0540
318.00	0.0300	0.0513
318.00	0.0600	0.0520
318.00	0.0900	0.0524
318.00	0.1200	0.0531
323.00	0.0300	0.0508
323.00	0.0600	0.0511
323.00	0.0900	0.0519
323.00	0.1200	0.0524

Surface tension liquid-gas, N/m [ref]

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Surface tension liquid-gas, N/m - Liquid
303.10	0.3228	0.0174	0.0603
303.10	0.3228	0.0516	0.0597
303.10	0.3228	0.1035	0.0589
303.10	0.4880	0.0174	0.0575
303.10	0.4880	0.0516	0.0567
303.10	0.4880	0.1035	0.0562
313.20	0.3228	0.0174	0.0589
313.20	0.3228	0.0516	0.0583
313.20	0.3228	0.1035	0.0579
313.20	0.4880	0.0174	0.0561
313.20	0.4880	0.0516	0.0555
313.20	0.4880	0.1035	0.0552
318.20	0.3228	0.0174	0.0581
318.20	0.3228	0.0516	0.0576
318.20	0.3228	0.1035	0.0568
318.20	0.4880	0.0174	0.0554
318.20	0.4880	0.0516	0.0548
318.20	0.4880	0.1035	0.0544
323.10	0.3228	0.0174	0.0576
323.10	0.3228	0.0516	0.0571
323.10	0.3228	0.1035	0.0562
323.10	0.4880	0.0174	0.0546
323.10	0.4880	0.0516	0.0541
323.10	0.4880	0.1035	0.0537
333.30	0.3228	0.0174	0.0564
333.30	0.3228	0.0516	0.0558
333.30	0.3228	0.1035	0.0553
333.30	0.4880	0.0174	0.0537
333.30	0.4880	0.0516	0.0530
333.30	0.4880	0.1035	0.0525

Surface tension liquid-gas, N/m [ref]

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Surface tension liquid-gas, N/m - Liquid
293.15	0.1180	0.0210	0.0611
293.15	0.1180	0.0420	0.0605
293.15	0.1180	0.0630	0.0604
293.15	0.1180	0.0840	0.0600
293.15	0.2360	0.0210	0.0573
293.15	0.2360	0.0420	0.0569
293.15	0.2360	0.0630	0.0566
293.15	0.2360	0.0840	0.0562
293.15	0.3540	0.0210	0.0536
293.15	0.3540	0.0420	0.0534
293.15	0.3540	0.0630	0.0533
293.15	0.3540	0.0840	0.0525
303.15	0.1180	0.0210	0.0593
303.15	0.1180	0.0420	0.0592
303.15	0.1180	0.0630	0.0591
303.15	0.1180	0.0840	0.0583
303.15	0.2360	0.0210	0.0559
303.15	0.2360	0.0420	0.0558
303.15	0.2360	0.0630	0.0549
303.15	0.2360	0.0840	0.0544
303.15	0.3540	0.0210	0.0518
303.15	0.3540	0.0420	0.0512
303.15	0.3540	0.0630	0.0507
303.15	0.3540	0.0840	0.0505
313.15	0.1180	0.0210	0.0576
313.15	0.1180	0.0420	0.0574
313.15	0.1180	0.0630	0.0571
313.15	0.1180	0.0840	0.0570
313.15	0.2360	0.0210	0.0547
313.15	0.2360	0.0420	0.0542
313.15	0.2360	0.0630	0.0538
313.15	0.2360	0.0840	0.0526
313.15	0.3540	0.0210	0.0503
313.15	0.3540	0.0420	0.0500
313.15	0.3540	0.0630	0.0498
313.15	0.3540	0.0840	0.0495
323.15	0.1180	0.0210	0.0561
323.15	0.1180	0.0420	0.0560
323.15	0.1180	0.0630	0.0558
323.15	0.1180	0.0840	0.0555
323.15	0.2360	0.0210	0.0530
323.15	0.2360	0.0420	0.0526
323.15	0.2360	0.0630	0.0519
323.15	0.2360	0.0840	0.0510
323.15	0.3540	0.0210	0.0490
323.15	0.3540	0.0420	0.0484
323.15	0.3540	0.0630	0.0479
323.15	0.3540	0.0840	0.0475

Surface tension liquid-gas, N/m [ref]

Operational condition: Mass fraction = 0.7 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mass fraction of Piperazine (1) - Liquid	Surface tension liquid-gas, N/m - Liquid
293.00	0.0300	0.0557
293.00	0.0600	0.0559
293.00	0.0900	0.0564
293.00	0.1200	0.0569
298.00	0.0300	0.0549
298.00	0.0600	0.0550
298.00	0.0900	0.0556
298.00	0.1200	0.0558
303.00	0.0300	0.0541
303.00	0.0600	0.0547
303.00	0.0900	0.0551
303.00	0.1200	0.0553
308.00	0.0300	0.0530
308.00	0.0600	0.0533
308.00	0.0900	0.0542
308.00	0.1200	0.0547
313.00	0.0300	0.0524
313.00	0.0600	0.0528
313.00	0.0900	0.0533
313.00	0.1200	0.0540
318.00	0.0300	0.0513
318.00	0.0600	0.0520
318.00	0.0900	0.0524
318.00	0.1200	0.0531
323.00	0.0300	0.0508
323.00	0.0600	0.0511
323.00	0.0900	0.0519
323.00	0.1200	0.0524

Surface tension liquid-gas, N/m [ref]

Fixed			Measured
Temperature, K - Liquid	Mass fraction of Methyldiethanolamine (2) - Liquid	Mass fraction of Piperazine (1) - Liquid	Surface tension liquid-gas, N/m - Liquid
303.10	0.3228	0.0174	0.0603
303.10	0.3228	0.0516	0.0597
303.10	0.3228	0.1035	0.0589
303.10	0.4880	0.0174	0.0575
303.10	0.4880	0.0516	0.0567
303.10	0.4880	0.1035	0.0562
313.20	0.3228	0.0174	0.0589
313.20	0.3228	0.0516	0.0583
313.20	0.3228	0.1035	0.0579
313.20	0.4880	0.0174	0.0561
313.20	0.4880	0.0516	0.0555
313.20	0.4880	0.1035	0.0552
318.20	0.3228	0.0174	0.0581
318.20	0.3228	0.0516	0.0576
318.20	0.3228	0.1035	0.0568
318.20	0.4880	0.0174	0.0554
318.20	0.4880	0.0516	0.0548
318.20	0.4880	0.1035	0.0544
323.10	0.3228	0.0174	0.0576
323.10	0.3228	0.0516	0.0571
323.10	0.3228	0.1035	0.0562
323.10	0.4880	0.0174	0.0546
323.10	0.4880	0.0516	0.0541
323.10	0.4880	0.1035	0.0537
333.30	0.3228	0.0174	0.0564
333.30	0.3228	0.0516	0.0558
333.30	0.3228	0.1035	0.0553
333.30	0.4880	0.0174	0.0537
333.30	0.4880	0.0516	0.0530
333.30	0.4880	0.1035	0.0525

Sources

• Experiments and theory for the surface tensions of carbonated MDEA - PZ aqueous solutions
• Liquid heat capacity of the solvent system (piperazine + n-methyldiethanolamine + water)
• Physicochemical Properties of the System N,N-Dimethyl-dipropylene-diamino-triacetonediamine (EvA34), Water, and Carbon Dioxide for Reactive Absorption
• Viscosity Measurement and Correlation of Unloaded and CO2-Loaded Aqueous Solutions of N-Methyldiethanolamine-Piperazine
• Density and Viscosity of Aqueous Solutions of (N-Methyldiethanolamine + Piperazine) and (2-Amino-2-methyl-1-propanol + Piperazine) from (288 to 333) K
• Density and Viscosity of Aqueous Solutions of (2-Piperidineethanol + Piperazine) from (288 to 333) K and Surface Tension of Aqueous Solutions of (N-Methyldiethanolamine + Piperazine), (2-Amino-2-methyl-1-propanol + Piperazine), and (2-Piperidineethanol + Piperazine) from (293 to 323) K
• Densities, Viscosities, and Liquid Diffusivities in Aqueous Piperazine and Aqueous (Piperazine + N-Methyldiethanolamine) Solutions
• Thermophysical Properties of Aqueous Piperazine and Aqueous (N-Methyldiethanolamine + Piperazine) Solutions at Temperatures (298.15 to 338.15) K
• Solubility of Carbon Dioxide in Aqueous Solutions of N-Methyldiethanolamine and Piperazine in the High Gas Loading Region
• Solubility of Carbon Dioxide in Aqueous Solutions of N-Methyldiethanolamine and Piperazine in the Low Gas Loading Region