Iodometric determination of ferricyan in the presence of copper,silver, cadmium and zinc |
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Authors: | Moritz Kohn |
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Abstract: | Ferricyan can be determined in the presence of copper, silver and cadmium by addition of potassium ferrocyanide, filtration of the ferrocyanides of copper, silver and cadmium formed in this reaction, and titration of the potassium ferricyanide contained in the filtrate. In the case of silver, the ferricyan can also be determined without filtration by addition of potassium iodide and titration of the ferricyanide. In the case of zinc, potassium, ferrocyanide is added and without filtration the ferricyanide titrated. |
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