Mercuric amidochloride
Mercuric amidochloride is an inorganic compound with the formula HgNH2Cl. It consists of a zig-zag 1-dimensional polymer n with chloride counterions. It arises from the reaction of ammonia and mercuric chloride. Addition of base converts it into "Millon's base", which has the formula OH·x. A variety of related amido and nitrido materials with chloride, bromide, and hydroxide are known.
Before the toxicity of mercury was appreciated, mercuric amidochloride, known as "ammoniated mercury", was used as a topical antiseptic and disinfectant.
