Long lasting alkali and alkaline earth metal sensor
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United States of America Patent
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Aug 9, 1994
Grant Date -
N/A
app pub date -
Jun 8, 1992
filing date -
Jun 8, 1992
priority date (Note) -
Expired
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Abstract
A method and device is disclosed permitting accurate, reproducible assay of alkali metal and alkaline earth metal contents of molten aluminum over an extended period of use. The sensor of the present invention uses as a reference electrode a calibrated quantity of a sodium-gallium or sodium-indium alloy in the form of a two-phase intermetallic reference system.
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