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Effect of Sulfur Dioxide Atmospheres on Efflorescence
Author(s) -
MIKE T. M.,
BROWNELL W. E.
Publication year - 1956
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.1151-2916.1956.tb15827.x
Subject(s) - efflorescence , sulfur dioxide , sulfur , atmosphere (unit) , chemistry , carbonate , magnesium , sulfate , calcium carbonate , mineralogy , inorganic chemistry , organic chemistry , physics , thermodynamics
The effect of sulfurous atmospheres on the efflorescence of structural clay materials was studied. An efflorescing shale and a nonefflorescing clay were fired in 5 and 0.5% sulfur dioxide atmospheres. The efflorescing tendency was determined by a wick‐action type of test, and the efflorescing salts were analyzed by microchemical techniques. The effects of additions of calcium carbonate and magnesium carbonate to the nonefflorescing material were studied. Sulfate development in the drier was investigated by drying specimens in a sulfurous atmosphere. Efflorescence was obtained on specimens prepared from a normally nonefflorescing material when this material was fired in a sulfurous atmosphere; the efflorescence tendency was increased, however, by drying in an atmosphere containing sulfur dioxide.