Systematic design of chemical oscillators. 78. Kinetics and mechanism of the chlorite-thiourea reaction in acidic medium
Systematic design of chemical oscillators. 78. Kinetics and mechanism of the chlorite-thiourea reaction in acidic medium
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DOI:
10.1021/j100193a039
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发表时间:
1992-07
期刊:
影响因子:
--
通讯作者:
I. Epstein;K. Kustin;R. H. Simoyi
中科院分区:
文献类型:
--
作者:
I. Epstein;K. Kustin;R. H. Simoyi
The kinetics of the reaction between chlorite and thiourea in acidic medium have been studied. The stoichiometry of the reaction for pH>3 is 2ClO 2 - +SC(NH 2 ) 2 +H 2 O→2Cl - +OC(NH 2 ) 2 +SO 4 2- +2H + ; for pH<3 OC(NH 2 ) 2 is hydrolyzed to NH 4 + and CO 2 . The reaction is characterized by an induction period after which chlorine dioxide is produced.