1, 2, 3-Benzotriazole

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

1, 2, 3-Benzotriazole

 

an organic compound that occurs in the form of white, needle-shaped crystals.

Its melting point is 96°–98.5°C. It is insoluble in water and is soluble in alcohol and benzene. It is obtained by the action of KN02 on o-phenylenediamine in an acidic medium. It is used in analytical chemistry for the precipitation and quantitative determination of metals such as Cu, Ag, and Zn, as well as in photography as an antifogging agent.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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(135.) Finsgar, M, Milosev, I, "Inhibition of Copper Corrosion by 1, 2, 3-Benzotriazole: A Review." Corros.