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A RAPID METHOD FOR THE ESTIMATION OF SODA IN GLASSES *
Author(s) -
Scholes S. R.
Publication year - 1933
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.1151-2916.1933.tb16990.x
Subject(s) - titration , alkali metal , decomposition , sulfate , soda lime , boiling , mineralogy , chemistry , inorganic chemistry , analytical chemistry (journal) , chromatography , organic chemistry
A direct determination of alkali is often avoided in glass analysis because of the tedious nature of the method and the estimation by difference is not justifiable because of accumulating errors. The method proposed consists in HF‐H 2 SO 4 decomposition, removal of MgO and R 2 O 3 by lime, conversion of sulfate to carbonates by Ba(OH) 2 and CO 2 , boiling to precipitate CaCO 3 and BaCO 3 , and titration of Na 2 CO 3 .