THE SEPARATION OF THALLIUM FROM ACCOMPANYING ELEMENTS BY COPRECIPITATION WITH SILVER IODIDE
Detailed investigations concerning conditions of the coprecipitation of micrequantities of thallium with silver iodide undcr thc simultaneous separation of the element from its accompanying elcments were carried out. The complete coprecipitation of thallium depends on the pH value of the solution and the setting tinie of the precipitate. The maximum coprecipitation occurs at pH 2 and 3. Maintaining optimum conditions, it is possible to obtain the quantitative coprecipitation of thallium with silver iodide from dilute solutions (0.1 gamma Tl in 25 ml). The quantitative separation of microquantities of thallium from the accompanying elements chromium, mercury, antimony, gold, and copper was determined. By means of Sb/sup 124/ it was shown that under optimum conditions for the quantitative coprecipitation of thallium no antimony is coprecipitated with silver iodide. ln the presence of large quantities of mereury it is necessary to repeat the process as mercury is coprecipitated in large amounts with silver iodide. (auth)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-019902
- OSTI ID:
- 4219782
- Journal Information:
- Nauch. Doklady Vysshei Shkoly Khim. i Khim. Tekhnol., Vol. Vol: No. 4; Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
Separation and coprecipitation of lanthanides and americium by photolysis
Determination of Iodine in Thallium(I) Iodide Precipitates