Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Rapid Extraction of Antimony with Tributyl Phosphate. Direct Photometric Determination with Brilliant Green
A. A. YadavS. M. Khopkar
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1971 Volume 44 Issue 3 Pages 693-696

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Abstract

A new method is developed for the rapid extraction and direct photometric determination of antimony. With 20% TBP-toluene 3 to 15 μg of antimony is extracted from 2M hydrochloric acid containing 1 M magnesium chloride. From the organic phase, antimony is directly determined photometrically at 640 nm as its complex with brilliant green. Antimony can be selectively extracted in the presence of a large number of cations and anions. The total operation requires only 20 min.

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