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The mechanism of the reaction between hydroxyl ions and some internally hydrogen-bonded acids

✍ Scribed by Berta Perlmutter-Hayman; Rona Sarfaty; Ruth Shinar

Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
410 KB
Volume
8
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The kinetics of the proton transfer between hydroxyl ions and phenylazoresorcinol, 4‐(p‐nitrophenylazo), and 4‐(m‐nitrophenylazo) resorcinol have been investigated at 25°C and an ionic strength of 0.1__M__, in a wider pH range than had been done by previous authors. The rate at first decreased with decreasing [OH^−^], reached a minimum, and then started to increase with decreasing [OH^−^]. This unusual effect is explained by a mechanism suggested earlier for tropaeolin O. Rate constants and equilibrium constants have been evaluated and discussed.

The experimental data were obtained by the T‐jump method.

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