Development of semi-industrial synthesis of calcium polysulfide solution and determination of the content of sulfide ions in solution

Development of semi-industrial synthesis of calcium polysulfide solution and determination of the... Semi-industrial synthesis of a calcium polysulfide solution, a good demercurizing reagent in the technology for utilization of mercury-containing wastes, was developed. The development of a technology for utilization of wastes of this kind with the use of a calcium polysulfide solution is primarily associated with choosing the Hg: CaS n ratios. The Hg: CaS n ratio was found from the concentration of sulfide ions in the CaS n solution because the composition of the CaS n solution, where n = 4–6, is not constant. A photocolorimetric method was developed for determining the concentration of sulfide ions in the CaS n solution. The method was used for rapidly finding the content of sulfide ions in the CaSn solution on batches of industrial solutions in refinement of the technology for waste demercurization. The results obtained in determining the content of sulfide ions in a CaS n solution were confirmed by the independent titrimetric method. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Development of semi-industrial synthesis of calcium polysulfide solution and determination of the content of sulfide ions in solution

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427215090049
Publisher site
See Article on Publisher Site

Abstract

Semi-industrial synthesis of a calcium polysulfide solution, a good demercurizing reagent in the technology for utilization of mercury-containing wastes, was developed. The development of a technology for utilization of wastes of this kind with the use of a calcium polysulfide solution is primarily associated with choosing the Hg: CaS n ratios. The Hg: CaS n ratio was found from the concentration of sulfide ions in the CaS n solution because the composition of the CaS n solution, where n = 4–6, is not constant. A photocolorimetric method was developed for determining the concentration of sulfide ions in the CaS n solution. The method was used for rapidly finding the content of sulfide ions in the CaSn solution on batches of industrial solutions in refinement of the technology for waste demercurization. The results obtained in determining the content of sulfide ions in a CaS n solution were confirmed by the independent titrimetric method.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Dec 23, 2015

References

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