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benzalkonium chloride

[ben-zal-koh-nee-uh m] /ˌbɛn zælˈkoʊ ni əm/
noun, Chemistry
1.
a white or yellowish-white, water-soluble mixture of ammonium chloride derivatives having the structure C 8 H 10 NRCl, where R is a mixture of radicals ranging from C 8 H 17 – to C 18 H 37 –, that occurs as an amorphous powder or in gelatinous lumps: used chiefly as an antiseptic and a disinfectant.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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benzalkonium chloride in Medicine

benzalkonium chloride benz·al·ko·ni·um chloride (běn'zāl-kō'nē-əm)
n.
A powder prepared in an aqueous solution and used as a fungicide, bactericide, and spermicide.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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benzalkonium chloride in Science
benzalkonium chloride
  (běn'zāl-kō'nē-əm)   
A yellow-white powder prepared in an aqueous solution and used as a detergent, fungicide, bactericide, and spermicide. Benzalkonium chloride is a mixture of the chlorides of various organic compounds having a benzene ring attached to an ammoniated alkane.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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