MODELING THE OSCILLATORY BROMATE OXIDATION OF FERROIN IN OPEN SYSTEMS

被引：38

作者：

KEKI, S

MAGYAR, I

BECK, MT

GASPAR, V

机构：

[1] LAJOS KOSSUTH UNIV,DEPT PHYS CHEM,POB 7,H-4010 DEBRECEN,HUNGARY

[2] W VIRGINIA UNIV,DEPT CHEM,MORGANTOWN,WV 26506

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1992年 / 96卷 / 04期

关键词：

D O I：

10.1021/j100183a042

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A model for the ferroin-bromate-bromide-sulfuric acid system in a continuously stirred (flow-through) tank reactor has been constructed by extending the Noyes-Field-Thompson mechanism with the following composite processes: (a) ferroin-bromate, (b) ferroin-bromous acid, (c) ferroin-hypobromous acid, (d) ferroin-bromine, (e) ferriin-bromide, and (f) ferriin-bromine. The calculated high-amplitude oscillations and kinetic phase diagram are in good accordance with the experiments reported earlier. By completing the scheme with a reaction step accounting for the precipitation and dissolution of a ferroin-tribromide salt, the batch oscillations found at high concentrations of reactants can also be simulated.

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页码：1725 / 1729

页数：5

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