What is HCN? Important knowledge about HCN.

HCN is a chemical substance commonly known as Cyanhydric Acid. Its English name is Hydrogen cyanide. HCN is a form of organic compound, consisting of carbon, hydrogen, and nitrogen atoms. The atomic mass of HCN is 27.0253(11) and its atomic weight is 27.0253(11) Da. The HCN molecule includes a hydrogen atom connected to a nitrogen atom through a covalent bond, the nitrogen atom then connects to the carbon atom through a triple bond. HCN does not form ions in simple chemistry.

HCN has distinctive chemical and physical properties. Under standard conditions, HCN is a colorless liquid, with a rather unique smell, that of roasted almond and is highly toxic. Its pH level is very low, indicating that it is strongly acidic. HCN reacts with many other substances such as metals, acids, non-metals, and salts, creating a variety of different substances.

Common chemical equations involving HCN include:

• HCN + KI -> KCN + HI(reactionwithmetal)
• HCN + H₂O -> NH₄OH + CO₂(reactionwithacid)
• HCN + Cl₂ -> CCl₄ + N₂(reactionwithnon-metal)
• HCN + NaCl -> NaCN + HCl(reactionwithsalt)

The synthesis of HCN can be carried out in a laboratory or on an industrial scale. In the laboratory, HCN is commonly synthesized from KCN and H₂SO₄ acid. In industry, the process of synthesizing HCN usually uses ammonia gas, methane gas, and air gas through a high-temperature oxidation process.