Dortmund Data Bank

Triple Point of Water

The experimental data shown in these pages are freely available and have been published already in the DDB Explorer Edition. The data represent a small sub list of all available data in the Dortmund Data Bank. For more data or any further information please search the DDB or contact DDBST.


Formula Molar Mass CAS Registry Number Name
H2O 18.015 7732-18-5 Water
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Data Table

T [K] P [kPa] State Reference
238.45 212804.000 Crystal 1-Crystal 2-Crystal 3 3
248.85 344213.000 Crystal 2-Crystal 3-Crystal 5 3
251.15 207411.000 Crystal 1-Crystal 3-Liquid 3
256.15 346175.000 Crystal 3-Crystal 5-Liquid 3
273.18   Solid-Liquid-Vapor 1
273.25 0.6121 Solid-Liquid-Vapor 2

List of References

Number Source
1 Haida O.; Matsuo T.; Suga H.; Seki S.: Calorimetric study of the glassy state. X. Enthalpy relaxation at the glass-transition temperature of hexagonal ice.. J.Chem.Thermodyn. 6 (1974) 815-825
2 Douslin D.R.: Vapor Pressure of Water from - 2.5 to 20°C. J.Chem.Thermodyn. 3 (1971) 187-193
3 Bridgman P.W.: Water, in the Liquid and Five Solid Forms, under Pressure. Proc.Am.Acad.Art.Sci. 47 (1912) 439-558

Pure Component Data Overview