Authors:
E. Blasius Institut für Analytische Chemie und Radiochemie der Universität des Saarlandes Saarbrücken BRD

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A. Knöchel Institut für Analytische Chemie und Radiochemie der Universität des Saarlandes Saarbrücken BRD

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Abstract  

Selenite reacts with S2O 32− forming SeS4O 62− and S4O 62− . When the stoichiometric ratio (1∶4) is changed, secondary reactions take place and precipitation, of selenium is observed. Excessive S2O 32− reacts with SeS4O 62− in neutral solutions forming SeSSO 32− , which decomposes to Se. In acidic solutions this reaction has a minor importance and causes a small Se-precipitation. The main product gives a build-up reaction, forming SeS5O 62− . Excessive SeO 32− also gives SeSSO 32− and SeS5O 62− . SeSSO 32− is decomposed by sulfite, forming SeSO 32− and S2O 32− . Thiosulfate reduces SeO 32− to SeS4O 62− . SeSO 32− gives, a build-up reaction with SeS5O 62− , forming Se2S5O 62− and Se3S5O 62− . Decomposition of Se3S5O 62− causes precipitation of a S/Se-mixture. SeSSO 32− , SeS5O 62− , Se2S5O 62− and Se3S5O 62− have been detected for the first time.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)