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an unstable, colorless liquid, NH 2 Cl, with a pungent odor, derived from ammonia.

any of a class of compounds obtained by replacing a hydrogen atom of an =NH or −NH 2 group with chlorine.

a halogen element, a heavy, greenish-yellow, incombustible, water-soluble, poisonous gas that is highly irritating to the respiratory organs, obtained chiefly by electrolysis of sodium chloride brine: used for water purification, in the making of bleaching powder, and in the manufacture both of chemicals that do not contain chlorine, as ethylene glycol, and of those that do. : Cl; : 35.453; : 17.