ammonium chloride

noun Chemistry, Pharmacology.
a white, crystalline, water-soluble powder, NH 4 Cl, which produces a cooling sensation on the tongue, used chiefly in the manufacture of dry cells, in electroplating, and in medicine as an expectorant.
Also called sal ammoniac.


Origin:
1865–70

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Collins
World English Dictionary
ammonium chloride
 
n
Also called: sal ammoniac a white soluble crystalline solid used chiefly as an electrolyte in dry batteries and as a mordant and soldering flux. Formula: NH4Cl

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
ammonium chloride  
A white crystalline compound used in dry cells, as a soldering flux, and as an expectorant. Also called sal ammoniac. Chemical formula: NH4Cl.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

ammonium chloride

the salt of ammonia and hydrogen chloride. Its principal use is as an electrolyte in dry cells, and it is also extensively employed as a constituent of galvanizing, tinning, and soldering fluxes to remove oxide coatings from metals and thereby improve the adhesion of the solders. It is a component of many proprietary cold medicines and cough remedies. Ammonium chloride is a colourless, crystalline substance. It is highly soluble in water, readily forming a slightly acidic solution. It vaporizes without melting at 340 C (644 F) to form equal volumes of ammonia and hydrogen chloride. Ammonium chloride is yielded as a by-product in the ammonia-soda process for making sodium carbonate. It also is produced by reaction of ammonium sulfate and sodium chloride solutions

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Medical management of radiation event victims: indications and usage of ammonium chloride.
Ammonium chloride is not expected to be carcinogenic.
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