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Rate constants for the reaction of OH radicals with some amino polycarboxylic acids

✍ Scribed by P. Dwibedy; G. R. Dey; D. B. Naik; K. Kishore

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 107 KB
Volume: 32
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(2000)32:2<99::aid-kin5>3.0.co;2-#

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✦ Synopsis

Rate constants of OH radical reaction with some amino polycarboxylic acids (APCAs) such as EDTA, DTPA, HEDTA, NTA, and HIDA have been determined at different pHs using pulse radiolysis competition kinetics method with thiocyanate as the reference solute. The rate constants varied with pH (possibly due to their various pKs) and the plots of rate constants vs. pH are given. Rate constants for OH radical reaction with the various acid-base forms of these amino polycarboxylic acids are estimated from the plateau values in the plots.

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