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The determination of calcium sulphate in sulphide ores

✍ Scribed by Young, R. S. ;Hall, A. J.

Publisher
Wiley (John Wiley & Sons)
Year
1947
Weight
139 KB
Volume
66
Category
Article
ISSN
0368-4075

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✦ Synopsis

Abstract

Ammonium chloride solution is a satisfactory solvent for the calcium sulphate, anhydrite, and also very probably for gypsum. Extraction can be carried out completely on a β€”200 mesh material in a fairly short period. By means of this solution a differentiation can be made between the sulphur contained in base metal sulphides and barite, and the sulphur in the anhydrite. Celestite docs not give satisfactory results by this method. From observations made during the course of this work it was noted that the solubility of some of the naturally‐occurring sulphates depends largely on the particle size of the samples.

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