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HIGH‐TEMPERATURE PREPARATION AND THE OPTICAL PROPERTIES OF SODIUM ALUMINATE *
Author(s) -
Kammermeyer K.,
Peck Albert B.
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.tb19246.x
Subject(s) - sodium aluminate , aluminate , sodium , sodium oxide , melting point , oxide , materials science , mineralogy , inorganic chemistry , chemistry , chemical engineering , metallurgy , aluminium , composite material , cement , engineering
Crystalline sodium aluminate was prepared by heating monomolecular and other mixtures of Na 2 CO 3 and Al 2 O 3 3H 2 O for varying periods to temperatures up to 1700°C. The constituents produced were identified by petrographic‐microscopic methods, and new optical data on sodium aluminate was obtained. Sodium aluminate was found to exist from temperatures below 1100 to above 1700°C, its melting point being above 1700°C. Small amounts of iron oxide aid the formation of sodium aluminate, especially at the lower temperatures.