Potentiometric studies of dithiooxamide with a sulphide-selective membrane electrode |
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| Authors: | NM Sheina VP Izvekov MK Pápay K Tóth E Pungor |
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| Institution: | Institute for General and Analytical Chemistry, Technical University, 1502 BudapestHungary |
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| Abstract: | The sulphide-selective electrode is applicable to the determination of dithiooxamide by titration with silver nitrate. The effect of the alkali content of the solutions on the reaction has been studied. The reaction products are silver sulphide, oxalic acid, and nitric acid. If the alkali concentration of the solution is lower than that equivalent to the acid formed during the titration, the amount of sulphide produced by hydrolysis decreases and the equilibrium potential is established more slowly.The determination is rapid and accurate in the presence of 1 M sodium hydroxide. |
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| Keywords: | *|Present address: Chemical Faculty Institute of Analytical Chemistry Moscow University U S S R |
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