Abstract
Mercurous mercury can be titrated potentiometrically and visually with KMnO 4 in the presence of fluoride and nitric acid. The optimum conditions are 0.2–1.2 N HNO 3 in presence of 1% NaF at temperatures not exceeding 50 °C. The method can be applied for the microdetermination of amounts as small as 0.13 mg of Hg(I) both in HNO 3 and H 2SO 4. The latter acid is preferable.
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