Stability of K2FeO4 in dilute KOH solution

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	Stability of K2FeO4 in dilute KOH solution
	W. H. Yang; J. M. Wang; J. L. Cao; T. Pan; J. Q. Zhang; C. N. Cao
	2004
发表期刊	Acta Chimica Sinica
ISSN	0567-7351
卷号	62 期号:19 页码:1951-1955
摘要	The stability of K2FeO4 in dilute KOH solution with initial pH value from 8.0 to 13.0 was studied in detail by spectrophotometry method in this paper. The decomposition rate of aqueous solution of K2FeO4 is basically regulated by its concentration, pH and the decomposed product FeOOH that can catalyze the decomposition of K2FeO4. The increase of HO- concentration can improve the stability of K2FeO4 by decreasing the collision frequency between FeO42- ions. However, when the concentration of HO- reaches a certain value, the decomposition product FeOOH is easily produced. FeOOH can catalyze the decomposition of K2FeO4. It was found that K2FeO4 is the most stable in the pH region of 10.0 similar to 11.0 and the decomposition rate of K2FeO4 is in the first order in the initial period. The decomposition rule of K2FeO4 along with its concentration in KOH solution is related with the initial pH of the solution.
部门归属	zhejiang univ, dept chem, hangzhou 310027, peoples r china. huaqiao univ, coll mat sci & engn, quanzhou 362011, peoples r china. chinese acad sci, inst met res, state key lab corros & protect, shenyang 110015, peoples r china.;yang, wh (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;wjm@cmsce.zju.edu.cn
关键词	K2feo4 Stability Spectrophotometry Method Electrochemical Characteristics Ferrate(Vi) Ion Electrode Battery
URL	查看原文
WOS记录号	WOS:000224536500018
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35671
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. H. Yang,J. M. Wang,J. L. Cao,et al. Stability of K2FeO4 in dilute KOH solution[J]. Acta Chimica Sinica,2004,62(19):1951-1955.
APA	W. H. Yang,J. M. Wang,J. L. Cao,T. Pan,J. Q. Zhang,&C. N. Cao.(2004).Stability of K2FeO4 in dilute KOH solution.Acta Chimica Sinica,62(19),1951-1955.
MLA	W. H. Yang,et al."Stability of K2FeO4 in dilute KOH solution".Acta Chimica Sinica 62.19(2004):1951-1955.