The Separation of the Impurities in Bismuth Metal by Liquid Ion Exchangers and Colorimetric Determination

[摘要] The extraction curve of metal ions with Amberite LAl-chloroform has been found to be more steeper than with Amberite LAl-xylene or hexane, and the extraction ratio of Zn (¥±) in 2M HCl solution is 98%. The extraction ratio of As (¥²) in 9~11M HCl soln., Sb (¥²) in 2~4M HCl soln., and Fe (¥²) in 6~10M HCl soln. are 100%. The separated elements from Bi metal were determined by colorimetry, Zn (¥²) with dithizone, As (¥²) with Gutzeit method, Sb (¥²) with brilliant green and Fe (¥²) with thiocyanate.

[学科分类] 化学（综合）