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Fluoride Analysis of Glasses and Silicate Materials by Pyrohydrolysis Separation
Author(s) -
ADAMS P. B.,
WILLIAMS J. P.
Publication year - 1958
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1958.tb12937.x
Subject(s) - fluoride , silicate , silicate glass , thorium , titration , roasting , uranium , reproducibility , materials science , mineralogy , chemistry , inorganic chemistry , radiochemistry , analytical chemistry (journal) , metallurgy , environmental chemistry , chromatography , organic chemistry
Fluoride in a wide variety of glasses and silicate materials can be separated by pyrohydrolysis and then determined by titration with thorium nitrate. Pyrohydrolysis is accomplished by passing steam over a mixture of sample and uranium oxide (U 3 O 3 ) at temperatures of approximately 1000°C. The average reproducibility of results is 2 relative % and the results are in general slightly higher than those obtained by conventional methods of separation. A determination can be completed in about 1 hour.