Extraction of Scandium Nitrate and Thiocyanate Complexes Using Two-Phase Aqueous Systems and the Determination of Scandium
- Authors: Simonova T.N.1, Fedotov A.N.1, Alemasova N.V.2
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Affiliations:
- Faculty of Chemistry
- Litvinenko Institute of Physical Organic and Coal Chemistry
- Issue: Vol 73, No 1 (2018)
- Pages: 18-22
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182946
- DOI: https://doi.org/10.1134/S1061934818010112
- ID: 182946
Cite item
Abstract
Two-phase aqueous systems, polyethylene glycol PEG-3000 (C3H7OH)–NaNO3 (NaNO3 + KSCN)–H2O, are proposed for the selective extraction of scandium nitrate and thiocyanate complexes followed by the complexometric and spectrophotometric determination of scandium. Conditions for analyte separation from rare-earth and concomitant elements are optimized. The procedures are tested on samples of rare-earth metals, concentrates, and an aluminum alloy. The relative standard deviation is not more than 0.8% for complexometric determination and 4.6% for spectrophotometric determination. The time of analysis is not longer than 30 min.
About the authors
T. N. Simonova
Faculty of Chemistry
Author for correspondence.
Email: simonovatn@yandex.ru
Ukraine, Donetsk, 83001
A. N. Fedotov
Faculty of Chemistry
Email: simonovatn@yandex.ru
Ukraine, Donetsk, 83001
N. V. Alemasova
Litvinenko Institute of Physical Organic and Coal Chemistry
Email: simonovatn@yandex.ru
Ukraine, Donetsk, 83114