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Titrimetric analysis for silicon

Published online by Cambridge University Press:  05 July 2018

G. I. Z. Kalocsai  and
J. J. Hockley
G. I. Z. Kalocsai
Affiliation:
Department of Geology, University of New England, Armidale, New South Wales, 2351, Australia
J. J. Hockley
Affiliation:
Department of Geology, University of New England, Armidale, New South Wales, 2351, Australia
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Summary

Rapid, accurate silica determinations have been made titrimetrically following decomposition by HClO4-HF in a ‘Teflon’ vessel, the volatilized silicon tetrafluoride being precipitated as K2SiF6 in a HF-KF-glycerol-alcohol mixture. After filtration and washing with alcohol the precipitate is dissolved in boiling water, then titrated with NaOH. This method has many advantages over conventional gravimetric or spectrophotometric procedures.

Type
Research Article
Information
Mineralogical Magazine , Volume 38 , Issue 297 , March 1972 , pp. 618 - 622
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1972

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