Complexones

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 It might be outdated or ideologically biased.

Complexones

 

aminopolycarboxylic acids and their derivatives used in complexonometry and in water softening, the preparation and development of color film, and other technical processes. In analytical practice the following are used: nitrilo-triacetic acid N(CH2CCOOH)3, known as complexone I; ethyl-enediaminetetraacetic acid (HOOCCH2)2NCH2CH2N(CH2-COOH)2, known as complexone II; and the disodium salt of this acid known as complexone III, or trilon B. For most complexo-nometric titrations, complexone III, which forms stable complex compounds with many cations, is used. In addition, trans-1,2- diaminocyclohexanetetraacetic and diethylenetriaminopenta-acetic acids, which form even more stable complexes than complexone III, hold considerable promise.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Mixed donor atoms ligands arte subdivided into Schiff bases; amino acids, peptides, and proteins; complexones; and bidentate ligands.

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