| FEMA | N/A |
| CAS | 74-90-8 |
| EINECS | 200-821-6 |
| JECFA Food Flavoring | N/A |
| CoE Number | N/A |
| Organoleptic Notes |
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| Odor | N/A |
| Flavor | N/A |
| Material Notes | hydrogen cyanide (hcn); a toxic liquid or colorless gas. it is found in the smoke of various tobacco products and released by combustion of nitrogen-containing organic materials. Present in freshly distilled bitter almond oil (2-4%) prior to its removal by precipitation as calcium ferrocyanide to give food quality oil HCN is formed in Interstellar clouds through one of two major pathways: via a neutral-neutral reaction (CH2 + N ? HCN + H) and via dissociative recombination (HCNH+ + e- ? HCN + H). The dissociative recombination pathway is dominant by 30%; however, the HCNH+ must be in its linear form. Dissociative recombination with its structural isomer, H2NC+ produces hydrogen isocyanide (HNC), exclusively.; Hydrogen cyanide (with the historical common name of Prussic acid) is a chemical compound with chemical formula HCN. A solution of hydrogen cyanide in water is called hydrocyanic acid. Hydrogen cyanide is a colorless, extremely poisonous, and highly volatile liquid that boils slightly above room temperature at 26 �C (78.8 �F). HCN has a faint, bitter, almond-like odor that some people are unable to detect due to a genetic trait. Hydrogen cyanide is weakly acidic and partly ionizes in solution to give the cyanide anion, CN?. The salts of hydrogen cyanide are known as cyanides. HCN is a highly valuable precursor to many chemical compounds ranging from polymers to pharmaceuticals.; Hydrogen cyanide is a linear molecule, with a triple bond between carbon and nitrogen. It is a weak acid with a pKa of 9.2. A minor tautomer of HCN is HNC, hydrogen isocyanide. |