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Lithium Carbonate/Sodium Sulfate Eutectic—An Additive for Improving Glass Production
Author(s) -
BROWN PATRICK M.,
BORYTA DANIEL A.
Publication year - 1983
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.1151-2916.1983.tb10617.x
Subject(s) - eutectic system , sulfate , sodium sulfate , phase diagram , lithium carbonate , carbonate , sodium carbonate , mineralogy , lithium (medication) , materials science , sodium , chemistry , inorganic chemistry , phase (matter) , metallurgy , microstructure , organic chemistry , medicine , ion , endocrinology , ionic bonding
A phase diagram for the system lithium carbonate/sodium sulfate was developed by DTA measurements in a CO 2 atmosphere. The lithium carbonateisodium sulfate eutectic composition from that system improved glassmelting, speeded fining, and reduced the viscosity of a standard fiber glass when used as an additive. Improved melting rates were postulated to result from reaction of lithia with glass‐forming components at a relatively low temperature. Lithia is formed by decomposition of Li 2 CO 3 or Li 2 CO 3 /Na 2 SO 4 eutectic in air at or near their melting points.