Oxidimetric determination of sulphides.
TL;DR: A procedure is reported for the determination of soluble and insoluble sulphides by oxidation to sulphate with hypoiodite, an improvement over Bethge's iodate method.
About: This article is published in Talanta.The article was published on 1966-10-01. It has received 2 citations till now. The article focuses on the topics: Iodate.
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TL;DR: A comprehensive review is made of the analytical methods available for the inorganic acids derived from sulphur.
63 citations
TL;DR: Cyanide can be measured in the presence of dithionite and its decomposition products by the method of Liebig-Deniges after treatment of the sample with excess iodine, followed by sulfite, to correct for the excess iodide.
Abstract: Cyanide can be measured in the presence of dithionite and its decomposition products by the method of Liebig-Deniges after treatment of the sample with excess iodine, followed by sulfite. The iodine oxidizes dithionite, sulfite and thiosulfate to sulfate at pH 10. Any cyanide present in the sample will form iodine cyanide. Sulfite reduces excess iodine to iodide and converts cyanogen iodide to iodide and cyanide. A large amount of iodide in the sample shifts the end point of the titration significantly. An appropriate blank must be carried through the procedure to correct for the excess iodide.
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TL;DR: In this article, an improved method for the lodometric dctermination is described and its precision and accuracy are discussed; it is concluded that sensitivity is high, as is the precision when suitable oxidation conditions are chosen, but that the accuracy is not so high.
25 citations
TL;DR: Chloramine-T oxidises thiourea quantitatively to urea and sulphate ion in neutral and alkaline media as discussed by the authors, and it is completed within 2 min, even with a very small excess of the oxidant.
17 citations
8 citations
TL;DR: In this paper, analytischen Anwendungsmoglichkeiten von Thioharnstoff zu Sulfidfallungen untersucht.
Abstract: Es werden die analytischen Anwendungsmoglichkeiten von Thioharnstoff zu Sulfidfallungen untersucht. Dabei wird festgestellt, das eine Reihe von Schwermetallionen mit Thioharnstoff quantitativ als Sulfide ausfallbar sind. Die Niederschlage haben stochiometrische Zusammensetzung und sind sehr leicht filtrierbar.
7 citations