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UBC Theses and Dissertations

The determination of small amounts of zinc in ores Francis, Marion David


The determination of zinc by the back titration of excess potassium ferrocyanide is investigated and found very accurate and simple to perform. The use of the external indicator method is shown to be inaccurate and unreliable. A new indicator giving excellent results is developed for the titration of ferrocyanides with potassium permanganate.

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