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mercurous chloride

American  

noun

Pharmacology.
  1. calomel.


mercurous chloride British  

noun

  1. Systematic name: mercury(I) chloride.  Also called: calomel.  a white tasteless insoluble powder used as a fungicide and formerly as a medical antiseptic, cathartic, and diuretic. Formula: Hg 2 Cl 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of mercurous chloride

First recorded in 1880–85

Example Sentences

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Minor sources include the black or gray sulphide, metacinnabar, the native metal, and the white mercurous chloride, calomel.

From The Economic Aspect of Geology by C. K. (Charles Kenneth) Leith

The molecular weight of mercurous chloride has given occasion for much discussion.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" by Various

Being insoluble, mercurous chloride is precipitated as a white solid when a soluble chloride is added to a solution of mercurous nitrate: HgNO3 + NaCl = HgCl + NaNO3.

From An Elementary Study of Chemistry by William McPherson

How could you distinguish between mercurous chloride and mercuric chloride?

From An Elementary Study of Chemistry by William McPherson

The specific value of mercurous chloride is that it exerts the valuable properties of mercuric chloride in the safest and least irritant manner, as the active salt is continuously and freshly generated in small quantities.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" by Various

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