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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 15, Number 2
JKCSEZ 15(2)
April 20, 1971 

 
Title
The analysis of Bismuth metal and its alloy by using of cation exchanger

양이온교환수지에 의한 비스무트 지금 및 합금의 분리 정량
Author
Myon-young Park, Byong-Cho Lee, Kee-Chae Park

박면용, 이병조, 박기채
Keywords
Abstract
It is shown that the impurities of Cu(Ⅱ), Pb(Ⅱ), Zn(Ⅱ) and Ag(Ⅰ) in Bismuth metal and the components of Pb(Ⅱ), Zn(Ⅱ) and Sn(Ⅳ) in Bismuth alloy are separated into their components from each other by elutions through 3.14 cm2× 10cm cation exchange resin, Dowex 50w × 8 (100~200 mesh), column with the mixed solutions of HAc and NaAc as the eluents. The elution curve of Fe(Ⅲ) has a long tailing and is not separated quantitatively from Bi(Ⅲ). The eluents used for this separation are as follows; 1M HAc + 0.1M NaAc (pH 3.36) for Fe(Ⅲ) and Bi (Ⅲ). 0.3M HAc + 0.3M NaAc (pH 4.70) for Cu(Ⅱ), Pb(Ⅱ) and Zn(Ⅱ). 0.5M HAc + 0.5M NaAc (pH4.70) for Ag(Ⅰ) and Sn(Ⅳ). The analysis of cations eluted are carried out by spectrophotometry and EDTA titrimetry. Their recoveries are more than 99%.
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49 - 54
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