MECHANISM OF THE OXIDATIVE HYDROLYSIS OF IRON(II) SULFATE

被引：17

作者：

TABAKOVA, T

ANDREEVA, D

ANDREEV, A

VLADOV, C

MITOV, I

机构：

[1] Institute of Kinetics and Catalysis, Bulgarian Academy of Sciences, Sofia

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 1992年 / 3卷 / 04期

关键词：

D O I：

10.1007/BF00703026

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The kinetics of the oxidative hydrolysis of iron(II) sulphate at temperature 30-degrees-C and pH 4.5 in the concentration range 40-300 g l-1 were studied. The change in the kinetic equations in the presence of inhibitor and catalysts gives additional information about the mechanism of the process. In the presence of manganese(II) ions we observed two parallel mechanisms of oxidation (homogeneous and heterogeneous), in agreement with the obtained kinetic data. The change in the alpha-FeOOH precipitate structure with time, detected by Mossbauer spectroscopy, allows the suggesting of a mechanism of heterogeneous oxidation related to the crystal growth.

引用

页码：201 / 205

页数：5

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