Thiocyanic Acid

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thiocyanic acid

[¦thī·ō·sī¦an·ik ′as·əd]
(inorganic chemistry)
HSC:N A colorless, water-soluble liquid decomposing at 200°C; used to inhibit paper deterioration due to the action of light, and (in the form of organic esters) as an insecticide. Also known as rhodanic acid; sulfocyanic acid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Thiocyanic Acid


(also rhodanic acid), HSCN, a colorless, oily liquid with a pungent odor and a melting point of 5°C. Thi-ocyanic acid is stable only at low temperatures (approximately -90°C) or in dilute aqueous solutions (less than 5 percent), where it is almost completely dissociated. Only the derivatives of thiocyanic acid, for example, the thiocyanates, and the esters are of practical importance; the latter are used as insecticides and fungicides.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.