Mercuric amidochloride

Mercuric amidochloride is an inorganic compound with the formula HgNH2Cl. It consists of a zig-zag 1-dimensional polymer (HgNH2)n with chloride counterions.[1][2] It arises from the reaction of ammonia and mercuric chloride. Addition of base converts it into "Millon's base" (named for Eugène Millon), which has the formula [Hg2N]OH·xH2O. A variety of related amido and nitrido materials with chloride, bromide, and hydroxide are known.[3]

"Millon's base" redirects here. For the analytical reagent used to detect the presence of soluble proteins, see Millon's reagent.
Mercuric amidochloride
Names
IUPAC name
mercuric azanide chloride
Other names
mercuric amidochloride
mercury(II) amide chloride
mercury(II) amidochloride
ammoniated mercury
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.292
UNII
  • InChI=1S/ClH.Hg.H2N/h1H;;1H2/q;+2;-1/p-1 Y
    Key: WRWRKDRWMURIBI-UHFFFAOYSA-M Y
  • InChI=1/ClH.Hg.H2N/h1H;;1H2/q;+2;-1/p-1/rClH2HgN/c1-2-3/h3H2
    Key: WRWRKDRWMURIBI-CUFRCDTJAQ
  • Cl[Hg]N
Properties
HgNH2Cl
Molar mass 252.065 g/mol
Density 5.56 g/cm3
Pharmacology
D08AK01 (WHO)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Before the toxicity of mercury was appreciated, mercuric amidochloride, known as "ammoniated mercury", was used as a topical antiseptic and disinfectant.[4][5]

Eli Lilly & Company - Ointment No. 8 - Ammoniated Mercury 10%

See also
  • Merbromin, also known as "Mercurochrome", another antiseptic mercury compound
  • Thiomersal, another antiseptic mercury compound

References
  1. Wells, A.F. (1984). Structural Inorganic Chemistry. Oxford: Clarendon Press. ISBN 0-19-855370-6.
  2. Lipscomb, W. N. (1951). "The structure of mercuric amidochloride, HgNH2Cl". Acta Crystallographica. 4 (3): 266–8. doi:10.1107/S0365110X51000866.
  3. Holleman, A. F.; Wiberg, E. (2001). Inorganic Chemistry. San Diego: Academic Press. ISBN 0-12-352651-5.
  4. Aberer W, Gerstner G, Pehamberger H (September 1990). "Ammoniated mercury ointment: outdated but still in use". Contact Dermatitis. 23 (3): 168–71. doi:10.1111/j.1600-0536.1990.tb04778.x. PMID 2149317. S2CID 20467204.
  5. "Mercury ammonium chloride".
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