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Hydrogen cyanide

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Normal melting point

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director

Tfus (K) Reference Comment
259.85Cole, 1955Uncertainty assigned by TRC = 0.2 K; TRC
259.9Coates and Davies, 1950Uncertainty assigned by TRC = 0.1 K; TRC
259.88Coates and Coates, 1944Uncertainty assigned by TRC = 0.1 K; TRC
259.86Giauque and Ruehrwein, 1939Uncertainty assigned by TRC = 0.05 K; TRC
258.3Cobb and Walton, 1937Uncertainty assigned by TRC = 1. K; TRC
286.5Coates and Taylor, 1936Uncertainty assigned by TRC = 0.2 K; TRC; Data excluded from overall average
259.2Smyth and McNeight, 1936Uncertainty assigned by TRC = 0.5 K; TRC
259.Lewis and Schutz, 1934Uncertainty assigned by TRC = 1.5 K; TRC
258.29Carlisle, 1933Uncertainty assigned by TRC = 1. K; TRC
259.75Buchanan, 1932Uncertainty assigned by TRC = 0.3 K; TRC
259.8Lowry and Henderson, 1932Uncertainty assigned by TRC = 0.2 K; TRC
259.85Coates and Hartshorne, 1931Uncertainty assigned by TRC = 0.3 K; TRC
259.81Lespieau, 1919Uncertainty assigned by TRC = 0.5 K; TRC
259.75Tammann, 1899Uncertainty assigned by TRC = 0.5 K; TRC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Go To: Top, Normal melting point, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cole, 1955
Cole, R.H., On the Dielectric Constant of Liquid Hydrogen Cyanide., J. Am. Chem. Soc., 1955, 77, 2012. [all data]

Coates and Davies, 1950
Coates, J.E.; Davies, R.H., Hydrogen Cyanide. XVIII. Some Physical Properties of Anhydrous Hydrogen Cyanide., J. Chem. Soc., 1950, 1950, 1194. [all data]

Coates and Coates, 1944
Coates, G.E.; Coates, J.E., HCN. XIII. The Dielectric Constant of Anhydrous HCN., J. Chem. Soc., 1944, 1944, 77. [all data]

Giauque and Ruehrwein, 1939
Giauque, W.F.; Ruehrwein, R.A., The Entropy of Hydrogen Cyanide. Heat Capacity, Heat of Vaporization and Vapor Pressure. Hydrogen Bond Polymerization of the Gas in Chains of Indefinite Length., J. Am. Chem. Soc., 1939, 61, 2626. [all data]

Cobb and Walton, 1937
Cobb, A.W.; Walton, J.H., The Reaction of Hydrogen Cyanide With Sulfuric and Phosphoric Acids., J. Phys. Chem., 1937, 41, 351. [all data]

Coates and Taylor, 1936
Coates, J.E.; Taylor, E.G., Hydrogen Cyanide. VIII. Conductivity of Electrolytes in Anhydrous Hydrogen Cyanide. Some Uni-univalent Salts at 18 degrees., J. Chem. Soc., 1936, 1936, 1245. [all data]

Smyth and McNeight, 1936
Smyth, C.P.; McNeight, S.A., Molecular Rotation in Solid Arsine and Other Hydrides., J. Am. Chem. Soc., 1936, 58, 1723. [all data]

Lewis and Schutz, 1934
Lewis, G.N.; Schutz, P.W., The Vapor Pressure of Liquid and Solid Deutocyanic Acid., J. Am. Chem. Soc., 1934, 56, 1002. [all data]

Carlisle, 1933
Carlisle, P.J., Manufacture, Handling and Use of Hydrocyanic Acid., Ind. Eng. Chem., 1933, 25, 959. [all data]

Buchanan, 1932
Buchanan, G.H., Chim. Ind. (Paris), 1932, 28, 1024. [all data]

Lowry and Henderson, 1932
Lowry, T.M.; Henderson, S.T., Molecular Structure and Physical Properties of Prussic Acid. I. Refractive Dispersion of Prussic Acid and Its Homologs., Proc. R. Soc. London, A, 1932, 136, 471. [all data]

Coates and Hartshorne, 1931
Coates, J.E.; Hartshorne, N.H., Studies on Hydrogen Cyanide. III. The Freezing Points of Hydrogen Cyanide-Water Mixtures., J. Chem. Soc., 1931, 1931, 657. [all data]

Lespieau, 1919
Lespieau, R., C. R. Hebd. Seances Acad. Sci., 1919, 169, 31. [all data]

Tammann, 1899
Tammann, G., Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1899, 29, 51. [all data]


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