The Analysis of Minerals and Ores of the Rarer Elements (Classic Reprint)

Excerpt from The Analysis of Minerals and Ores of the Rarer Elements

In many cases, especially with minerals containing ferrous com pounds, it is advisable to grind the sample under absolute alcohol free from fixed residue, and to allow the alcohol to evaporate at room tem perature. These precautions have been found necessary to prevent oxidation of the fine powder during crushing and drying. I.

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