Cite this article as:

Demakhin A. G., Akchurin S. V., Fedorov V. A. Application of the Sodium Arsenite Hydrolysed for Obtaining Pure Arsenic Products. Izvestiya of Saratov University. New series. Series: Chemistry. Biology. Ecology, 2019, vol. 19, iss. 1, pp. 11-17. DOI: https://doi.org/10.18500/1816-9775-2019-19-1-11-17


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Application of the Sodium Arsenite Hydrolysed for Obtaining Pure Arsenic Products

Abstract

The article presents information about the possibility of using sodium arsenite hydrolyzed as a new type of arsenic-containing raw material for obtaining marketable products of various qualities. The methods of purification of arsenic (III) oxide as the main product of sodium arsenite hydrolyzed processing to various degrees of purity (3-6N) are given, which allows using it as a raw material for the synthesis of a wide range of arsenic compounds: arsenic acid, elemental arsenic, arsenic trichloride. The process of sublimation/ desublimation and vacuum-thermal purification of arsenic (III) oxide from impurities is considered. The developed methods for the purification of arsenic (III) oxide open up the possibility of using it for the synthesis of various compounds used in the glass and semiconductor industry, microelectronics, and fiber optic technology.

References

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