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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
13453 Tetrasodium pyrophosphate 7722-88-5 Na4O7P2 Overview Details
18396 Tetrapotassium pyrophosphate 7320-34-5 K4O7P2 Overview Details
1001399 Tetrapotassium pyrophosphate 7320-34-5 K4O7P2 Overview Details
1001697 Potassium pyrophosphate trihydrate K4P2O7*3H2O Overview Details
1006936 x Sodium y potassium pyrophosphate trihydrate Na(4x)K(4y)(P2O7)(x+y)*3(x+y)H2O Overview Details
1006937 x Sodium y potassium pyrophosphate hexahydrate Na(4x)K(4y)(P2O7)(x+y)*6(x+y)H2O Overview Details
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Mixture Data

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Solid-Liquid Equilibria (SLE)
DDB# Name 13453 18396 1001399 1001697 1006936 1006937 x Sodium y potassium pyrophosphate hexahydrate
174 Water n.a. n.a. n.a. n.a. n.a. n.a.
13453 Tetrasodium pyrophosphate 3 n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a.
1001697 Potassium pyrophosphate trihydrate n.a. n.a.
1006936 x Sodium y potassium pyrophosphate trihydrate n.a.

Vapor-Liquid Equilibria of Electrolyte Systems (ELE)
DDB# Name 13453 18396 1001399 1001697 1006936 1006937 x Sodium y potassium pyrophosphate hexahydrate
174 Water 2 2 n.a. n.a. n.a. n.a.
13453 Tetrasodium pyrophosphate n.a. n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a.
1001697 Potassium pyrophosphate trihydrate n.a. n.a.
1006936 x Sodium y potassium pyrophosphate trihydrate n.a.

Densities and Volumes of Mixtures, Excess Volumes (VE)
DDB# Name 13453 18396 1001399 1001697 1006936 1006937 x Sodium y potassium pyrophosphate hexahydrate
174 Water 4 9 n.a. n.a. n.a. n.a.
13453 Tetrasodium pyrophosphate n.a. n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a.
1001697 Potassium pyrophosphate trihydrate n.a. n.a.
1006936 x Sodium y potassium pyrophosphate trihydrate n.a.

Salt Solubilities (ESLE)
DDB# Name 13453 18396 1001399 1001697 1006936 1006937 x Sodium y potassium pyrophosphate hexahydrate
174 Water 1 2 n.a. n.a. n.a. n.a.
13453 Tetrasodium pyrophosphate n.a. n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a.
1001697 Potassium pyrophosphate trihydrate n.a. n.a.
1006936 x Sodium y potassium pyrophosphate trihydrate n.a.

Mixture Viscosities (VIS)
DDB# Name 13453 18396 1001399 1001697 1006936 1006937 x Sodium y potassium pyrophosphate hexahydrate
174 Water n.a. 5 n.a. n.a. n.a. n.a.
13453 Tetrasodium pyrophosphate n.a. n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a.
1001697 Potassium pyrophosphate trihydrate n.a. n.a.
1006936 x Sodium y potassium pyrophosphate trihydrate n.a.

Electrical Conductivities (ECND)
DDB# Name 13453 18396 1001399 1001697 1006936 1006937 x Sodium y potassium pyrophosphate hexahydrate
174 Water n.a. 10 n.a. n.a. n.a. n.a.
13453 Tetrasodium pyrophosphate n.a. n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a.
1001697 Potassium pyrophosphate trihydrate n.a. n.a.
1006936 x Sodium y potassium pyrophosphate trihydrate n.a.

Further Thermodynamic Properties (X)
DDB# Name 13453 18396 1001399 1001697 1006936 1006937 x Sodium y potassium pyrophosphate hexahydrate
174 Water 1 n.a. n.a. n.a. n.a. n.a.
13453 Tetrasodium pyrophosphate n.a. n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a.
1001697 Potassium pyrophosphate trihydrate n.a. n.a.
1006936 x Sodium y potassium pyrophosphate trihydrate n.a.

Total
DDB# Name 13453 18396 1001399 1001697 1006936 1006937 x Sodium y potassium pyrophosphate hexahydrate
174 Water 8 28 n.a. n.a. n.a. n.a.
13453 Tetrasodium pyrophosphate 3 n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a. n.a.
18396 Tetrapotassium pyrophosphate n.a. n.a. n.a.
1001697 Potassium pyrophosphate trihydrate n.a. n.a.
1006936 x Sodium y potassium pyrophosphate trihydrate n.a.

Dortmund Data Bank Version: February 2024
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