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AB-112

Quantitative determination of metals that can be precipitated by potassium hexacyanoferrate(II) in wine («décassage» of wine)


Summary

Wine sometimes contains heavy metals which can be precipitated out by the addition of potassium ferrocyanide. Generally, these are quantities of iron ranging between 1 and 5 mg, and exceptionally up to 9 mg Fe/L. Zinc, copper, and lead – in descending order of content – may also be present. To estimate the quantity of potassium ferrocyanide necessary for the «décassage of the wine», only very complicated and relatively inaccurate methods have been described until now.

This Bulletin permits accurate results to be obtained easily with a simple instrumentation. The results are available in a short time.

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Metrohm AG

Ionenstrasse
9100 Herisau

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