Hydrogen Cyanide (HCN)

CAS ID#: 74-90-8, 143-33-9,000151-50-8,000592-01-8, 000544-92-3, 506-61-6, 0460-19-5, 506-77-4

Affected Organ Systems: None

Cancer Classification:  Please contact NTP, IARC, or EPA with questions on cancer and cancer classification.

Chemical Classification: Inorganic substances

Summary: hydrogen cyanide is a colorless or pale-blue liquid (hydrocyanic acid); at higher temperatures, it is a colorless gas. Hydrogen cyanide is very volatile, producing potentially lethal concentrations at room temperature. The vapor is flammable and potentially explosive. Hydrogen cyanide has a faint, bitter almond odor and a bitter, burning taste. It is soluble in water and is often used as a 96% aqueous solution.