Gravimetric determination of selenium from perchloric acid solution with hydrazine |
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| Authors: | Ooba S Uneo S |
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| Institution: | National Institute for Researches in Inorganic Materials, Kurakake, Sakura-mura, Niihari-gun, Ibaraki, 300-31, Japan. |
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| Abstract: | The gravimetric determination of selenium, by reduction of selenious acid in perchloric acid solution with hydrazine hydrate, has been studied in detail. Elemental selenium is completely precipitated in 3.2-5.1M perchloric acid at room temperature or 100 degrees C. One mole of selenious acid reacts with one mole of hydrazine hydrate to give elemental selenium. |
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