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 Dortmund Data Bank
Thermophysical Data for Process Design
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DDB# Name CAS-RN Formula
148 Sulfuric acid 7664-93-9 H2O4S Overview Details
174 Water 7732-18-5 H2O Overview Details
4966 Potassium sulfate 7778-80-5 K2O4S Overview Details
17374 Potassium hydrogen sulfate 7646-93-7 HKO4S Overview Details
1005753 Tri(potassium sulfate) monosulfuric acid K6H2(SO4)4 Overview Details
1005754 Tetra(potassium sulfate) monosulfiric acid
monohydrate		 K8H2(SO4)5*H2O Overview Details
1005755 Di(potassium sulfate) trisulfuric acid
dihydrate		 K4H6(SO4)5*2H2O Overview Details
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Mixture Data

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Vapor-Liquid Equilibria (VLE)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 150 1 1 n.a. n.a. n.a.
174 Water 4 n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Heats of Mixing (HE)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 3 n.a. n.a. n.a. n.a. n.a.
174 Water n.a. n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Heat Capacities of Mixtures, Excess Heat Capacities (CPE)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 22 n.a. n.a. n.a. n.a. n.a.
174 Water 16 1 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

(A)zeotropic Data (AZD)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 41 n.a. n.a. n.a. n.a. n.a.
174 Water n.a. n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Solid-Liquid Equilibria (SLE)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 42 5 7 n.a. n.a. n.a.
174 Water 3 1 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Vapor-Liquid Equilibria of Electrolyte Systems (ELE)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 64 n.a. n.a. n.a. n.a. n.a.
174 Water 71 11 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 120 n.a. 3 n.a. n.a. n.a.
174 Water 83 3 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Salt Solubilities (ESLE)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 8 n.a. n.a. n.a. n.a. n.a.
174 Water 254 1 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Critical Data of Mixtures (CRI)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 1 n.a. n.a. n.a. n.a. n.a.
174 Water n.a. 1 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Mixture Viscosities (VIS)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 50 n.a. 1 n.a. n.a. n.a.
174 Water 80 n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Mixture Surface Tensions (MSFT)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 26 n.a. n.a. n.a. n.a. n.a.
174 Water 1 n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Mixture Speeds of Sound (MSOS)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 1 n.a. n.a. n.a. n.a. n.a.
174 Water 9 7 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Mixture Thermal Conductivities (MTCN)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 7 n.a. n.a. n.a. n.a. n.a.
174 Water 12 n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Mixture Dielectric Constants (MDEC)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 3 n.a. n.a. n.a. n.a. n.a.
174 Water n.a. n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Mixture P-v-T Data (MPVT)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 3 n.a. n.a. n.a. n.a. n.a.
174 Water 47 n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Electrical Conductivities (ECND)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 26 n.a. n.a. n.a. n.a. n.a.
174 Water 17 1 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Diffusion Coefficients (DIF)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid n.a. n.a. n.a. n.a. n.a. n.a.
174 Water 1 n.a. n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Further Thermodynamic Properties (X)
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 50 n.a. n.a. n.a. n.a. n.a.
174 Water 18 1 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Total
DDB# Name 174 4966 17374 1005753 1005754 1005755 Di(potassium sulfate) trisulfuric acid dihydrate
148 Sulfuric acid 617 6 12 n.a. n.a. n.a.
174 Water 616 27 n.a. n.a. n.a.
4966 Potassium sulfate n.a. n.a. n.a. n.a.
17374 Potassium hydrogen sulfate n.a. n.a. n.a.
1005753 Tri(potassium sulfate) monosulfuric acid n.a. n.a.
1005754 Tetra(potassium sulfate) monosulfiric acid monohydrate n.a.

Dortmund Data Bank Version: February 2024
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