REACTION BETWEEN MERCURY(2) AND ORGANIC COMPOUNDS .I. COMPLEXIMETRIC DETERMINATION OF MERCURY(2) WITH O-(2-THIAZOLYLAZO)CRESOL AS INDICATOR

被引:19
作者
KAI, F
机构
[1] Department of Chemistry, Faculty of Science, Kumamoto University, Kurokami-machi, KumamotoJapan
关键词
D O I
10.1016/S0003-2670(01)81744-X
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A direct EDTA titration method for mercury(II) ions with o-(2-thiazolylazo)-cresol (TAC) as the metallochromic indicator at pH 7-8.3 is described. Sharp color changes from blue to yellow or red indicate the equivalence point. The indicator transition of TAC is discussed theoretically by using the formation constants of the mercury (II)-TAC chelate; the results obtained were confirmed experimentally by photometric titration. © 1969.
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页码:129 / &
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