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Thermal Decomposition of Sodalites
Author(s) -
SCHIPPER D. J.,
LATHOUWERS T. W.,
DOORN C. Z.
Publication year - 1973
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.1151-2916.1973.tb12402.x
Subject(s) - sodalite , hydroxide , thermal decomposition , chemistry , decomposition , inorganic chemistry , bromide , halide , sodium hydroxide , bromate , mineralogy , zeolite , organic chemistry , catalysis
The decomposition of bromate and hydroxide sodalites was studied by DTA and TG. Bromate sodalite is converted exothermally at 600°C into bromide sodalite. Hydroxide sodalite loses water and is then converted endothermally into a carnegieite phase at 740°C. The conversion of hydroxide sodalite mixed with sodium halide into halide sodalite at temperatures >740°C proceeds via the decomposition of the hydroxide sodalite. After hydroxide sodalite is heated to temperatures between 600°C and the conversion temperature, it exhibits the photoluminescence of O 2 − .