Mixture of Sodium nitrate + sodium sulphate + Water

Datasets

1. Mass fraction (14)
2. η - Viscosity, Pa*s
3. σ_cond - Electrical conductivity, S/m
4. n₀ - Refractive index (Na D-line) (2)
5. ρ_l - Mass density, kg/m3 (4)

Mass fraction of sodium sulphate (2) [ref]

Operational conditions:

• Temperature, K = 373.15 (Liquid)
• Pressure, kPa = 101.3 (Liquid)

Mass fraction of Sodium nitrate (1) - Liquid	Mass fraction of sodium sulphate (2) - Liquid
0.1360	0.1780
0.2490	0.1090
0.4050	0.0490
0.5130	0.0277
0.5810	0.0197
0.6205	0.0196

Mass fraction of sodium sulphate (2) [ref]

Operational conditions:

• Temperature, K = 373.15 (Liquid)
• Pressure, kPa = 101.3 (Liquid)

Mass fraction of Sodium nitrate (1) - Liquid	Mass fraction of sodium sulphate (2) - Liquid
0.6310	0.0086
0.6205	0.0196

Mass fraction of Sodium nitrate (1) [ref]

Operational conditions:

• Pressure, kPa = 88.4 (Liquid)
• Temperature, K = 313.15 (Liquid)

Mass fraction of sodium sulphate (2) - Liquid	Mass fraction of Sodium nitrate (1) - Liquid
0.3289	0.0000
0.2880	0.0486
0.2467	0.0975
0.2105	0.1439
0.1770	0.1910
0.1489	0.2305
0.1256	0.2694
0.1066	0.3061
0.0916	0.3423
0.0799	0.3582
0.0796	0.3575

Mass fraction of Sodium nitrate (1) [ref]

Operational conditions:

• Pressure, kPa = 88.4 (Liquid)
• Temperature, K = 313.15 (Liquid)

Mass fraction of sodium sulphate (2) - Liquid	Mass fraction of Sodium nitrate (1) - Liquid
0.0799	0.3582
0.0796	0.3575
0.0720	0.3823
0.0662	0.3952
0.0526	0.4174
0.0450	0.4256
0.0353	0.4504
0.0248	0.4897
0.0248	0.4901

Mass fraction of Sodium nitrate (1) [ref]

Operational conditions:

• Pressure, kPa = 88.4 (Liquid)
• Temperature, K = 313.15 (Liquid)

Mass fraction of sodium sulphate (2) - Liquid	Mass fraction of Sodium nitrate (1) - Liquid
0.0248	0.4897
0.0248	0.4901
0.0128	0.4978
0.0000	0.5082

Mass fraction of sodium sulphate (2) [ref]

Operational conditions:

• Temperature, K = 353.15 (Liquid)
• Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium nitrate (1) - Liquid	Mass fraction of sodium sulphate (2) - Liquid
0.0000	0.3038
0.0401	0.2676
0.0752	0.2467
0.1453	0.1875
0.2058	0.1483
0.2637	0.1141
0.3086	0.0875
0.3745	0.0712
0.4168	0.0566
0.4481	0.0445
0.4651	0.0392
0.4803	0.0339
0.5098	0.0287
0.5185	0.0277
0.5610	0.0186
0.5781	0.0179
0.5718	0.0179

Mass fraction of sodium sulphate (2) [ref]

Operational conditions:

• Temperature, K = 353.15 (Liquid)
• Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium nitrate (1) - Liquid	Mass fraction of sodium sulphate (2) - Liquid
0.5781	0.0179
0.5859	0.0101
0.5977	0.0000
0.5718	0.0179

Mole fraction of sodium sulphate (2) [ref]

Fixed			Measured
Temperature, K - Liquid	Mole fraction of Sodium nitrate (1) - Liquid	Pressure, kPa - Liquid	Mole fraction of sodium sulphate (2) - Liquid
303.15	0.0267	100.00	0.0494

Mole fraction of sodium sulphate (2) [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Sodium nitrate (1) - Liquid	Mole fraction of sodium sulphate (2) - Liquid
303.15	0.0267	0.0494
303.15	0.0973	0.0220
323.15	0.1531	0.0079

Mole fraction of sodium sulphate (2) [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Sodium nitrate (1) - Liquid	Mole fraction of sodium sulphate (2) - Liquid
303.15	0.0973	0.0220
303.15	0.1623	0.0058
323.15	0.1864	0.0042
323.15	0.1531	0.0079

Mole fraction of sodium sulphate (2) [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Fixed		Measured
Temperature, K - Liquid	Mole fraction of Sodium nitrate (1) - Liquid	Mole fraction of sodium sulphate (2) - Liquid
303.15	0.1623	0.0058
323.15	0.1864	0.0042

Mass fraction of sodium sulphate (2) [ref]

Operational conditions:

• Temperature, K = 333.15 (Liquid)
• Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium nitrate (1) - Liquid	Mass fraction of sodium sulphate (2) - Liquid
0.0000	0.3105
0.0417	0.2691
0.0789	0.2350
0.1240	0.2021
0.1991	0.1541
0.2534	0.1190
0.3031	0.0912
0.3524	0.0789
0.4050	0.0660
0.4766	0.0353
0.4837	0.0331

Mass fraction of sodium sulphate (2) [ref]

Operational conditions:

• Temperature, K = 333.15 (Liquid)
• Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium nitrate (1) - Liquid	Mass fraction of sodium sulphate (2) - Liquid
0.4837	0.0331
0.5248	0.0234
0.5370	0.0184

Mass fraction of sodium sulphate (2) [ref]

Operational conditions:

• Temperature, K = 333.15 (Liquid)
• Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium nitrate (1) - Liquid	Mass fraction of sodium sulphate (2) - Liquid
0.5370	0.0184
0.5466	0.0130
0.5556	0.0000

Viscosity, Pa*s [ref]

Operational conditions:

• Pressure, kPa = 88.4 (Liquid)
• Temperature, K = 313.15 (Liquid)

Fixed		Measured
Mass fraction of sodium sulphate (2) - Liquid	Mass fraction of Sodium nitrate (1) - Liquid	Viscosity, Pa*s - Liquid
0.3289	0.0000	0.0027
0.2880	0.0486	0.0024
0.2467	0.0975	0.0022
0.2105	0.1439	0.0020
0.1770	0.1910	0.0019
0.1489	0.2305	0.0019
0.1256	0.2694	0.0019
0.1066	0.3061	0.0019
0.0916	0.3423	0.0019
0.0799	0.3582	0.0020
0.0796	0.3575	0.0020
0.0720	0.3823	0.0020
0.0662	0.3952	0.0020
0.0526	0.4174	0.0021
0.0450	0.4256	0.0021
0.0353	0.4504	0.0021
0.0248	0.4897	0.0024
0.0248	0.4901	0.0023
0.0128	0.4978	0.0023
0.0000	0.5082	0.0021
0.0247	0.4885	0.0023
0.0800	0.3579	0.0020

Electrical conductivity, S/m [ref]

Fixed				Measured
Mass fraction of Water (3) - Liquid	Mass fraction of sodium sulphate (2) - Liquid	Temperature, K - Liquid	Pressure, kPa - Liquid	Electrical conductivity, S/m - Liquid
0.3599	0.0196	373.15	101.30	53.1

Refractive index (Na D-line) [ref]

Operational conditions:

• Pressure, kPa = 88.4 (Liquid)
• Temperature, K = 313.15 (Liquid)

Fixed		Measured
Mass fraction of sodium sulphate (2) - Liquid	Mass fraction of Sodium nitrate (1) - Liquid	Refractive index (Na D-line) - Liquid
0.3289	0.0000	1.3779
0.2880	0.0486	1.3769
0.2467	0.0975	1.3767
0.2105	0.1439	1.3766
0.1770	0.1910	1.3772
0.1489	0.2305	1.3782
0.1256	0.2694	1.3798
0.1066	0.3061	1.3816
0.0916	0.3423	1.3831
0.0799	0.3582	1.3843
0.0796	0.3575	1.3844
0.0720	0.3823	1.3826
0.0662	0.3952	1.3853
0.0526	0.4174	1.3872
0.0450	0.4256	1.388
0.0353	0.4504	1.389
0.0248	0.4897	1.3929
0.0248	0.4901	1.3929
0.0128	0.4978	1.3923
0.0000	0.5082	1.3916
0.0247	0.4885	1.3933
0.0800	0.3579	1.3846

Refractive index (Na D-line) [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mole fraction of Sodium nitrate (1) - Liquid	Mole fraction of sodium sulphate (2) - Liquid	Refractive index (Na D-line) - Liquid
303.15	0.0267	0.0494	1.377
303.15	0.0973	0.0220	1.382
303.15	0.1623	0.0058	1.3893
323.15	0.1864	0.0042	1.3902
323.15	0.1531	0.0079	1.3885

Mass density, kg/m3 [ref]

Fixed				Measured
Mass fraction of Water (3) - Liquid	Mass fraction of sodium sulphate (2) - Liquid	Temperature, K - Liquid	Pressure, kPa - Liquid	Mass density, kg/m3 - Liquid
0.3599	0.0196	373.15	101.30	1584.5

Mass density, kg/m3 [ref]

Operational conditions:

• Pressure, kPa = 88.4 (Liquid)
• Temperature, K = 313.15 (Liquid)

Fixed		Measured
Mass fraction of sodium sulphate (2) - Liquid	Mass fraction of Sodium nitrate (1) - Liquid	Mass density, kg/m3 - Liquid
0.3289	0.0000	1317.0
0.2880	0.0486	1309.4
0.2467	0.0975	1304.5
0.2105	0.1439	1302.2
0.1770	0.1910	1308.9
0.1489	0.2305	1318.2
0.1256	0.2694	1329.3
0.1066	0.3061	1341.1
0.0916	0.3423	1351.1
0.0799	0.3582	1361.5
0.0796	0.3575	1362.6
0.0720	0.3823	1364.7
0.0662	0.3952	1369.1
0.0526	0.4174	1381.1
0.0450	0.4256	1388.0
0.0353	0.4504	1400.3
0.0248	0.4897	1427.0
0.0248	0.4901	1426.8
0.0128	0.4978	1417.5
0.0000	0.5082	1408.4
0.0247	0.4885	1423.5
0.0800	0.3579	1358.4

Mass density, kg/m3 [ref]

Operational conditions:

• Temperature, K = 353.15 (Liquid)
• Pressure, kPa = 100 (Liquid)

Fixed		Measured
Mass fraction of Sodium nitrate (1) - Liquid	Mass fraction of sodium sulphate (2) - Liquid	Mass density, kg/m3 - Liquid
0.0000	0.3038	1254.0
0.0401	0.2676	1251.1
0.0752	0.2467	1260.0
0.1453	0.1875	1259.2
0.2058	0.1483	1271.2
0.2637	0.1141	1286.4
0.3086	0.0875	1298.2
0.3745	0.0712	1341.0
0.4168	0.0566	1364.5
0.4481	0.0445	1380.7
0.4651	0.0392	1391.0
0.4803	0.0339	1399.7
0.5098	0.0287	1422.7
0.5185	0.0277	1430.2
0.5610	0.0186	1462.2
0.5781	0.0179	1478.9
0.5859	0.0101	1477.3
0.5977	0.0000	1477.0
0.5718	0.0179	1472.4

Mass density, kg/m3 [ref]

Operational condition: Pressure, kPa = 100 (Liquid)

Fixed			Measured
Temperature, K - Liquid	Mole fraction of Sodium nitrate (1) - Liquid	Mole fraction of sodium sulphate (2) - Liquid	Mass density, kg/m3 - Liquid
303.15	0.0267	0.0494	1318.0
303.15	0.0973	0.0220	1353.0
303.15	0.1623	0.0058	1414.0
323.15	0.1864	0.0042	1442.0
323.15	0.1531	0.0079	1412.0

Sources

• Solid-liquid equilibrium of Na+//Cl-, NO3-, SO42- -H2O quaternary system at 373.15 K
• Phase Equilibria of the Na+, NH4+//SO42-, NO3--H2O Quaternary System at 303.15 and 323.15 K
• Stable Phase Equilibria of the Quaternary System Na+//Cl-, NO3-, SO42--H2O at 353.15 K
• Investigation of Solid-Liquid Equilibria on the Na+//Cl-, NO3-, SO42--H2O System and the Na+//NO3-, SO42--H2O System at 313.15 K
• Stable Solid-Liquid Equilibrium of the Quaternary System Na+//Cl-, NO3-, and SO42--H2O at 333.15 K

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