hydrogen cyanide

CAS No.: 74-90-8
Synonyms:
Formula: CHN
Exact Mass: 27.01090
Molecular Weight: 27.02530
PSA: 23.79000
LogP: 0.13978
Description Feedback
Hydrogen cyanide (HCN), sometimes called prussic acid, is an organic compound with the chemical formula HCN. It is a colorless, extremely poisonous and flammable liquid that boils slightly above room temperature, at 25.6°C (78.1°F). HCN is produced on an industrial scale and is a highly valuable precursor to many chemical compounds ranging from polymers to pharmaceuticals.

Properties Feedback
Appearance & Physical State:colourless or pale blue liquid, or colourlessgas, (depending upon temperature) with a bitter almond odour
Density:0.69
Melting Point:-14ºC
Boiling Point:25 - 26ºC
Flash Point:17.5ºC
Refractive Index:n20/D 1.531(lit.)
Water Solubility:insoluble

Safety Info Feedback
Hazard Class:6.1(a)
Safety Statements:S24/25
HS Code:2926909090
Packing Group:III
WGK Germany:3
RIDADR:UN 3265 8/PG 2
Risk Statements:R12; R26; R50/53; R26/27/28
Hazard Codes:C; T; Xi

GC Analytical Method Total: 3 GC Analytical Method
Kovats' RI, non-polar column, isothermal [Detail]
Column type Active phase Temperature (C) Retention Index (I) Reference
Capillary CP Sil 5 CB 20. 319.9 Do and Raulin, 1992
Kovats' RI, non-polar column, isothermal [Detail]
Column type Active phase Temperature (C) Retention Index (I) Reference
Capillary PoraPLOT Q 160. 300. Do and Raulin, 1989
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Precursor and Product