すい 化水素
1. hydrogen cyanide
Wikipedia definition
2. Hydrogen cyanideHydrogen cyanide (with the historical common name of Prussic acid) is a chemical compound with chemical formula HCN. It is a colorless, extremely poisonous liquid that boils slightly above room temperature at 26 °C (79 °F). Hydrogen cyanide is a linear molecule, with a triple bond between carbon and nitrogen. A minor tautomer of HCN is HNC, hydrogen isocyanide. Hydrogen cyanide is weakly acidic with a pKa of 9.2. It partly ionizes in water solution to give the cyanide anion, CN.
Read “Hydrogen cyanide” on English Wikipedia
Read “シアン化水素” on Japanese Wikipedia
Read “Hydrogen cyanide” on DBpedia


to talk about this word.