Precipitation of zinc sulfide by hydrolysis of thioacetamide in the presence of hydrazine hydrochloride |
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Authors: | Richard B. Hahn David Lee Pringle |
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Affiliation: | Depertment of Chemistry, Wayne State University, Detroit 2, MichU.S.A. |
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Abstract: | Zinc sulfide can be precipitated quantitatively from solutions buffered at pH 2 using thioacetamidehydrazine hydrochloride mixtures as precipitants. Optimum results are obtained using equimolar quantities of thioacetamide and hydrazine hydrochloride. Coprecipitation of cobalt sulfide was studied using citrate-citric acid, and sulfate-bisulfate buffers. Optimum separations are achieved using a sulfate-bisulfate buffer containing ammonium thiocyanate. |
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