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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB# Name CAS-RN Formula
174 Water 7732-18-5 H2O Overview
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Pure Component Data

Property  Points   Sets  Temperature
Range
States Sets
Compressibility (isentropic) 1 1 298-298 KLiquid 1
Compressibility (isothermal) 593 20 273-423 KLiquid 20
Compressibility Factor (isothermal) 55 3 423-523 KGas/Vapor 3
Critical Data 36 36 (hidden) Critical Point 36
Density 22072 2272 20-1273 KLiquid 1852
Supercritical 200
Gas/Vapor 174
Further States 46
Dielectric Constant 1581 269 67-823 KLiquid 246
Further States 23
Diffusion Coefficient 6 4 283-303 KLiquid 4
Enthalpy 6 2 273-647 KGas/Vapor 1
Liquid 1
Enthalpy (H-H298) 14 1 0-1500 KIdeal Gas 1
Entropy 8 7 298-485 KGas/Vapor 6
Liquid 1
G-function 160 4 50-6000 KGas/Vapor 4
Heat of Fusion 18 16 (hidden) Solid-Liquid 16
Heat of Sublimation 1 1 158-158 KVapor-Solid 1
Heat of Transition 1 1 (hidden) Solid-Solid 1
Heat of Vaporization 571 68 273-647 KVapor-Liquid 68
Ideal Gas Heat Capacity 169 5 50-6000 KIdeal Gas 5
Melting Point 451 90 (hidden) Solid-Liquid 80
Further States 10
Molar Heat Capacity (cP) 3875 294 0-972 KLiquid 211
Gas/Vapor 34
Solid 25
Supercritical 17
Further States 7
Molar Heat Capacity (cV) 1240 72 293-873 KGas/Vapor 28
Vapor-Liquid 22
Liquid 17
Further States 5
Molar Polarization 1 1 303-303 KLiquid 1
Molar Saturation Heat Capacity 3 1 613-633 KVapor Phase of VLE 1
NormDensity (Gas or Vapor Densities reduced to STP) 2 1 416-416 KGas/Vapor 1
Second Virial Coefficient 54 7 308-773 KGas/Vapor 7
Speed of Sound 2853 321 252-653 KLiquid 298
Further States 23
Std. Heat of Formation 16 3 0-1500 KLiquid 2
Gas/Vapor 1
Surface Tension 1620 286 233-644 KLiquid 275
Further States 11
Thermal Conductivity 5702 565 223-1313 KLiquid 289
Gas/Vapor 143
Supercritical 100
Further States 33
Thermal Expansion Coefficient 1 1 291-291 KLiquid 1
Transition Temperature 119 15 (hidden) Glass > Crystal 4
Liquid > Glas 3
Crystal 2 > Crystal 1 2
Crystal 2 > Crystal 5 1
Crystal 3 > Crystal 5 1
Crystal 6 > Crystal 5 1
Crystal 3 > Crystal 1 1
Crystal 3 > Crystal 2 1
Solid-Solid 1
Triple Point 12 12 (hidden) Solid-Liquid-Vapor 3
Crystal 5-Crystal 6-Liquid 2
Crystal 3-Crystal 5-Liquid 2
Crystal 1-Crystal 3-Liquid 2
Crystal 6-Crystal 7-Liquid 1
Crystal 2-Crystal 3-Crystal 5 1
Crystal 1-Crystal 2-Crystal 3 1
Vapor Pressure 6232 874 132-651 KVapor-Liquid 851
Further States 23
Viscosity (Dynamic) 6488 963 239-2073 KLiquid 795
Gas/Vapor 136
Further States 32
Viscosity (Kinematic) 541 106 270-973 KLiquid 68
Gas/Vapor 24
Supercritical 13
Further States 1
Octanol-Water
Partition Coefficients
3 3 296-298 K
Electrical Conductivities 185 46 273-674 Kn.a.n.a.
Mixture P-v-T Data 13 1 356-426 Kn.a.n.a.
Mixture Viscosities 93 8 279-349 Kn.a.n.a.

Pure Component Properties Data Bank Information Page
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Dortmund Data Bank Version: February 2024
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