Mixture of Water + Potassium phosphate, tribasic

Datasets

1. (Relative) activity (3)
2. Molality, mol/kg
3. η - Viscosity, Pa*s
4. Eutectic temperature, K
5. P_vap - Vapor or sublimation pressure, kPa
6. n₀ - Refractive index (Na D-line) (2)
7. ρ_l - Mass density, kg/m3 (2)
8. c_sound,fluid - Speed of Sound, m/s (2)
9. T_fus(P) - Solid-liquid equilibrium temperature, K

(Relative) activity of Water (1) [ref]

Operational conditions:

• Pressure, kPa = 101 (Liquid)
• Temperature, K = 298.15 (Liquid)

Molality, mol/kg of Potassium phosphate, tribasic (2) - Liquid	(Relative) activity of Water (1) - Liquid
0.1000	0.9950
0.1500	0.9926
0.2000	0.9903
0.2500	0.9880
0.3000	0.9858
0.4000	0.9813
0.5000	0.9768
1.0000	0.9538
1.5	0.9301
2.0	0.9047
2.5	0.8730
3.0	0.8301
3.5	0.7915
4.0	0.7473
4.5	0.6969
5.0	0.6409
5.5	0.5886

Osmotic coefficient [ref]

Operational condition: Temperature, K = 298.15 (Liquid)

Molality, mol/kg of Potassium phosphate, tribasic (2) - Liquid	Osmotic coefficient - Liquid
0.4308	0.6940
0.5142	0.6980
0.6347	0.7050
0.7575	0.7080
0.8132	0.7160
1.0023	0.7440
1.0119	0.7450
1.2412	0.7780
1.6947	0.8660
1.8303	0.8930

(Relative) activity of Water (1) [ref]

Operational condition: Temperature, K = 298.15 (Liquid)

Mass fraction of Potassium phosphate, tribasic (2) - Liquid	(Relative) activity of Water (1) - Liquid
0.0838	0.9787
0.0984	0.9745
0.1187	0.9683
0.1385	0.9621
0.1472	0.9589
0.1754	0.9477
0.1768	0.9471
0.2085	0.9328
0.2469	0.9098
0.2646	0.8996
0.2798	0.8889

Molality, mol/kg of Potassium phosphate, tribasic (2) [ref]

Fixed		Measured
Pressure, kPa - Liquid	Temperature, K - Liquid	Molality, mol/kg of Potassium phosphate, tribasic (2) - Liquid
101.00	298.15	5.5

Viscosity, Pa*s [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Molality, mol/kg of Potassium phosphate, tribasic (2) - Liquid	Viscosity, Pa*s - Liquid
288.15	0.5000	0.0014
298.15	0.5000	0.0011
308.15	0.5000	0.0009
318.15	0.5000	0.0007
288.15	1.0000	0.0017
298.15	1.0000	0.0013
308.15	1.0000	0.0011
318.15	1.0000	0.0008
288.15	1.5	0.0020
298.15	1.5	0.0016
308.15	1.5	0.0013
318.15	1.5	0.0010
288.15	2.0	0.0023
298.15	2.0	0.0018
308.15	2.0	0.0014
318.15	2.0	0.0011

Eutectic temperature, K [ref]

Pressure, kPa - Liquid	Eutectic temperature, K - Liquid
100.00	235.20

Vapor or sublimation pressure, kPa [ref]

Operational condition: Temperature, K = 298.15 (Liquid)

Mass fraction of Potassium phosphate, tribasic (2) - Liquid	Vapor or sublimation pressure, kPa - Liquid
0.0838	3.11
0.0984	3.09
0.1187	3.07
0.1385	3.05
0.1472	3.04
0.1754	3.01
0.1768	3.01
0.2085	2.96
0.2469	2.89
0.2646	2.86
0.2798	2.82

Refractive index (Na D-line) [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Molality, mol/kg of Potassium phosphate, tribasic (2) - Liquid	Refractive index (Na D-line) - Liquid
298.15	0.1000	1.3365
298.15	0.3000	1.344
298.15	0.5000	1.3517
298.15	0.7000	1.3595
298.15	0.9000	1.3671
308.15	0.1000	1.3351
308.15	0.3000	1.3426
308.15	0.5000	1.3502
308.15	0.7000	1.3581
308.15	0.9000	1.3659
303.15	0.1000	1.3357
303.15	0.3000	1.3435
303.15	0.5000	1.351
303.15	0.7000	1.3588
303.15	0.9000	1.3667

Refractive index (Na D-line) [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mass fraction of Potassium phosphate, tribasic (2) - Liquid	Refractive index (Na D-line) - Liquid
298.15	0.0200	1.3356
298.15	0.0500	1.3413
298.15	0.1000	1.3537
298.15	0.1500	1.3651
298.15	0.2000	1.3792
298.15	0.2500	1.3962
298.15	0.3000	1.418
308.15	0.0200	1.3346
308.15	0.0500	1.3402
308.15	0.1000	1.3512
308.15	0.1500	1.3632
308.15	0.2000	1.3768
308.15	0.2500	1.3928
308.15	0.3000	1.4109
318.15	0.0200	1.3337
318.15	0.0500	1.3386
318.15	0.1000	1.3488
318.15	0.1500	1.3606
318.15	0.2000	1.3736
318.15	0.2500	1.3885
318.15	0.3000	1.4029

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Molality, mol/kg of Potassium phosphate, tribasic (2) - Liquid	Mass density, kg/m3 - Liquid
298.15	0.1000	1017.141
298.15	0.3000	1057.815
298.15	0.5000	1101.229
298.15	0.7000	1145.912
298.15	0.9000	1191.529
303.15	0.1000	1015.625
303.15	0.3000	1056.829
303.15	0.5000	1100.464
303.15	0.7000	1145.568
303.15	0.9000	1191.619
308.15	0.1000	1013.921
308.15	0.3000	1054.866
308.15	0.5000	1098.721
308.15	0.7000	1144.258
308.15	0.9000	1190.094

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mass fraction of Potassium phosphate, tribasic (2) - Liquid	Mass density, kg/m3 - Liquid
298.15	0.0200	1015.8
298.15	0.0500	1048.6
298.15	0.1000	1106.7
298.15	0.1500	1176.8
298.15	0.2000	1203.4
298.15	0.2500	1226.9
298.15	0.3000	1241.7
308.15	0.0200	1011.9
308.15	0.0500	1045.0
308.15	0.1000	1102.7
308.15	0.1500	1172.6
308.15	0.2000	1199.8
308.15	0.2500	1223.5
308.15	0.3000	1237.1
318.15	0.0200	1008.3
318.15	0.0500	1040.4
318.15	0.1000	1100.3
318.15	0.1500	1171.1
318.15	0.2000	1194.9
318.15	0.2500	1218.0
318.15	0.3000	1231.8

Speed of sound, m/s [ref]

Operational condition: Pressure, kPa = 101 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Molality, mol/kg of Potassium phosphate, tribasic (2) - Liquid	Speed of sound, m/s - Liquid
298.15	0.1000	1518.16
298.15	0.3000	1559.72
298.15	0.5000	1602.98
298.15	0.7000	1658.8
298.15	0.9000	1716.63
303.15	0.1000	1529.77
303.15	0.3000	1570.2
303.15	0.5000	1616.07
303.15	0.7000	1666.69
303.15	0.9000	1723.66
308.15	0.1000	1539.67
308.15	0.3000	1578.93
308.15	0.5000	1622.81
308.15	0.7000	1671.93
308.15	0.9000	1725.1

Speed of sound, m/s [ref]

Operational conditions:

• Pressure, kPa = 100 (Liquid)
• Frequency, MHz = 2 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Molality, mol/kg of Potassium phosphate, tribasic (2) - Liquid	Speed of sound, m/s - Liquid
288.15	0.5000	1586.24
298.15	0.5000	1598.06
308.15	0.5000	1609.92
318.15	0.5000	1622.62
288.15	1.0000	1693.5
298.15	1.0000	1698.62
308.15	1.0000	1704.14
318.15	1.0000	1708.02
288.15	1.5	1789.18
298.15	1.5	1791.77
308.15	1.5	1793.76
318.15	1.5	1795.95
288.15	2.0	1878.29
298.15	2.0	1882.51
308.15	2.0	1885.77
318.15	2.0	1889.4

Solid-liquid equilibrium temperature, K [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Mass fraction of Potassium phosphate, tribasic (2) - Liquid	Solid-liquid equilibrium temperature, K - Liquid
0.0000	271.00
0.0500	266.80
0.1000	263.80
0.2000	253.20
0.3000	243.80

Sources

• Thermodynamic properties of binary aqueous solutions of orthophosphate salts, sodium, potassium and ammonium at T= 298.15 K
• Comparative study of density, sound velocity and refractive index for (water + alkali metal) phosphates aqueous systems at T = (298.15, 303.15, and 308.15) K
• Viscosities of Some Saccharides in Aqueous Solutions of Phosphate-Based Inorganic Salts
• Influence of the Temperature, Type of Salt, and Alcohol on Phase Diagrams of 2-Propanol + Inorganic Salt Aqueous Two-Phase Systems: Experimental Determination and Correlation
• Influence of Phosphate-Based Salts on Enthalpy of Dilution and Isentropic Compressibility Properties of Saccharides and Their Derivatives in Aqueous Solutions
• Water in Solutions of Chaotropic and Kosmotropic Salts: A Differential Scanning Calorimetry Investigation
• Osmotic and Activity Coefficient of 1-Ethyl-3-methylimidazolium Bromide in Aqueous Solutions of Potassium Dihydrogen Phosphate, Dipotassium Hydrogen Phosphate, and Tripotassium Phosphate at T = 298.15 K

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