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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
6308 Sodium hydroxide 1310-73-2 HNaO Overview Details
1000455 Sodium dihydrogen phosphate dihydrate NaH2PO4*2H2O Overview Details
1001353 Sodium dihydrogen phosphate dihydrate NaH2PO4*2H2O Overview Details
1004658 Tetra(sodium phosphate) sodium hydroxide 48
hydrate		 Na13(PO4)4OH*48H2O Overview Details
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Mixture Data

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Vapor-Liquid Equilibria (VLE)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water 13 27 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Heat Capacities of Mixtures, Excess Heat Capacities (CPE)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water 4 52 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

(A)zeotropic Data (AZD)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water 9 n.a. n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Solid-Liquid Equilibria (SLE)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water 7 4 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Vapor-Liquid Equilibria of Electrolyte Systems (ELE)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 101 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water 15 179 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Salt Solubilities (ESLE)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 19 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Critical Data of Mixtures (CRI)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 1 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Mixture Viscosities (VIS)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water 14 40 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Mixture Surface Tensions (MSFT)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 7 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Mixture Speeds of Sound (MSOS)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 22 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Mixture Thermal Conductivities (MTCN)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 8 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Mixture Dielectric Constants (MDEC)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 5 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Mixture P-v-T Data (MPVT)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 101 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Electrical Conductivities (ECND)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 83 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Diffusion Coefficients (DIF)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water n.a. 1 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Further Thermodynamic Properties (X)
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water 1 65 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Total
DDB# Name 2421 6308 1000455 1001353 1004658 Tetra(sodium phosphate) sodium hydroxide 48 hydrate
174 Water 63 715 n.a. n.a. n.a.
2421 Phosphorus pentoxide n.a. n.a. n.a. n.a.
6308 Sodium hydroxide n.a. n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a. n.a.
1000455 Sodium dihydrogen phosphate dihydrate n.a.

Dortmund Data Bank Version: February 2024
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