Photometric Determination of Thallium with Rhodamine B
- 1 June 1957
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 30 (6) , 567-571
- https://doi.org/10.1246/bcsj.30.567
Abstract
Procedure is given for the spectrophotometric determination of 1–10μg. of thallium with rhodamine B. Ammonium persulfate was also found to be as effective as bromine in oxidizing thallium preparatory to rhodamine B—benzene extraction. For the separation of thallium from other elements, univalent thallium is extracted with dithizone in chloroform from a basic solution containing cyanide and then transferred to an aqueous solution by shaking the chloroform with dilute nitric acid. The procedure provides for the presence of antimony, gallium, gold, iron and tungsten.Keywords
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