DSpace at IIT Bombay >
IITB Publications >
Please use this identifier to cite or link to this item:
|Title: ||Solvent extraction separation of thallium(III) from associated elements with hexaacetyl calix(6)arene|
|Authors: ||KHOPKAR, SM|
|Issue Date: ||2003|
|Publisher: ||NATL INST SCIENCE COMMUNICATION|
|Citation: ||INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 42(12), 2945-2948|
|Abstract: ||Trace amount of thallium has been quantitatively extracted with hexaacetyl calix(6)arene at pH 2.0 with toluene as the diluent. Thallium is stripped from organic phase with 2M hydrochloric, nitric or perchloric acid and determined spectrophotometrically. The 3-5 min equilibration period is adequate for complete extraction. A large number of ions are tolerated during the process of extraction. However, uranium, antimony, tin and lead show strong interference. Thallium is extracted in the presence of multicomponent mixtures containing thorium, bismuth, manganese, chromium and iron and separated selectively with stripping agents (mineral acids). Gallium and indium have been separated by selective extraction with oxine. The proposed method is extended for the analysis of thallium from real samples of soil, sediments and analogous products. The method is simple, rapid and selective with relative standard derivation of +/-1.5%.|
|Appears in Collections:||Article|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.