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 Dortmund Data Bank
Thermophysical Data for Process Design
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Query
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DDB# Name CAS-RN Formula
174 Water 7732-18-5 H2O Overview Details
2421 Phosphorus pentoxide 1314-56-3 O5P2 Overview Details
4128 Potassium hydroxide 1310-58-3 HKO Overview Details
1000970 Potassium hydroxide 1310-58-3 HKO Overview Details
1001367 Dipotassium hydrogen phosphate hexahydrate K2HPO4*6H2O Overview Details
1001512 Potassium phosphate heptahydrate K3PO4*7H2O Overview Details
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Mixture Data

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Vapor-Liquid Equilibria (VLE)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water 13 3 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Heat Capacities of Mixtures, Excess Heat Capacities (CPE)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water 4 56 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

(A)zeotropic Data (AZD)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water 9 n.a. n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Solid-Liquid Equilibria (SLE)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water 7 3 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Vapor-Liquid Equilibria of Electrolyte Systems (ELE)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 43 1 n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water 15 119 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Salt Solubilities (ESLE)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 13 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Mixture Viscosities (VIS)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water 14 33 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Mixture Surface Tensions (MSFT)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 8 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Mixture Speeds of Sound (MSOS)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 9 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Mixture Thermal Conductivities (MTCN)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 9 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Mixture Dielectric Constants (MDEC)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 20 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Mixture P-v-T Data (MPVT)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 1 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Electrical Conductivities (ECND)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 32 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Diffusion Coefficients (DIF)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water n.a. 3 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Further Thermodynamic Properties (X)
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water 1 23 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Total
DDB# Name 2421 4128 1000970 1001367 1001512 Potassium phosphate heptahydrate
174 Water 63 375 1 n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a. n.a.
4128 Potassium hydroxide n.a. n.a.
1001367 Dipotassium hydrogen phosphate hexahydrate n.a.

Dortmund Data Bank Version: February 2024
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