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Acta Chimica Sinica ›› 1964, Vol. 30 ›› Issue (3): 330-335. Previous Articles Next Articles
陈永兆, 萧锦荣, 方仲根
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CHEN YUNG-CHAO, HSIAO CHIN-YUNG, FANG CHUNG-GIN
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By means of preliminary experiments, lactic acid has been found to be a good masking agent for tin(Ⅳ), titanium(Ⅳ) and antimony(Ⅴ) in EDTA titrations.With the use of 10 ml of 1:5 (v/v) lactic acid solution, up to 100 mg (or 200 mg) of tin can he masked without interfering with the titration of lead (or zinc) at ca.pH 5.5 with xylenol orange as indicator.
CHEN YUNG-CHAO, HSIAO CHIN-YUNG, FANG CHUNG-GIN. THE USES OF HYDROXY ACIDS IN CHELATOMETRY——Ⅰ.THE MASKING OF TIN(Ⅳ)WITH LACTIC ACID AND THE INDIRECT TITRATION OF TIN[J]. Acta Chimica Sinica, 1964, 30(3): 330-335.
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