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cyanide US English

A salt or ester of hydrocyanic acid, containing the anion CN− or the group —CN. The salts are generally extremely toxic

methyl cyanide US English

Another term for acetonitrile.

sodium cyanide US English

A white odorless crystalline soluble compound that has, when damp, an odor of hydrogen cyanide. It is used for extracting gold and silver from their ores and for case-hardening steel

hydrogen cyanide US English

A highly poisonous gas or volatile liquid with an odor of bitter almonds, made by the action of acids on cyanides

potassium cyanide US English

An extremely poisonous solid, KCN, used in gold and silver extraction and other metallurgical processes, and as a reducing agent in chemical analysis.

methyl cyanide in acetonitrile US English

A toxic odoriferous liquid, used as a solvent in high-performance liquid chromatography