Electroanalytical Chemistry of Sulfur Compounds For the New Coal Conversion Technologies
- 1 June 1989
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 22 (6) , 1537-1546
- https://doi.org/10.1080/00032718908051618
Abstract
Polarographic methods are described “tailor-made” for the speciation and determination of sulfur contaminants in synfuels and coal gasification/liquefaction process streams. In samples containing the anions, S2− x, sulfidic sulfur was quantitated by anodic depolarization of the dropping mercury electrode, while polysulfidic sulfur was determined with the aid of an electroreduction process implicating 2(x-1) electrons. Polythionates were electroreduced to thiosulfate, sulfite, sulfide and/or mixtures thereof, under judiciously controlled experimental conditions. Thiosulfate and sulfite were quantitated by differential pulse polarography at dropping mercury anodes via reactions involving formation of thiosulfato- and sulfitomercurates.Keywords
This publication has 3 references indexed in Scilit:
- Analytical chemistry of the sulphur acidsTalanta, 1974
- Physikalische charakterisierung der sulfan-disulfonate K2S3O6 bis K2S6O6; IR spektren der sulfan-disulfonateJournal of Inorganic and Nuclear Chemistry, 1964
- Infrared Spectra and Characteristic Frequencies of Inorganic IonsAnalytical Chemistry, 1952