The determination of fluorine in rocks and minerals by a pyrohydrolytic method
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 96 (1138) , 51-54
- https://doi.org/10.1039/an9719600051
Abstract
A rapid pyrohydrolytic method, with simple apparatus, is described for the determination of fluorine in rocks and minerals. The sample is heated with a three-component flux in a stream of moist air, and the liberated hydrogen fluoride is absorbed into an alkaline solution. The recovered fluorine is determined either colorimetrically or by means of a fluoride-specific electrode. The method is suitable for determining fluorine at concentrations down to about 50 p.p.m.Keywords
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