期刊
PHYSICS AND CHEMISTRY OF LIQUIDS
卷 39, 期 2, 页码 239-247出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00319100108030342
关键词
oxidation; pyrogallol; molybdenum(VI); hydrogen peroxide
The oxidation of pyrogallol red (PGR) by hydrogen peroxide has been studied both in the absence and presence of molybdenum(VI) at pH of 7.0 by spectrophotometric detection. The reaction rate was studied with a fix-time method from 0.5 to 4.5 min. The effect of reagents concentration, ionic strength and temperature was studied to give the optimum conditions. At the optimizing conditions the rate constant, energy and entropy of activation and frequency factor have been calculated using the Arrhenius and Eyring plots.
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