Long lasting alkali and alkaline earth metal sensor

Details Long lasting alkali and alkaline earth metal sensor Long lasting alkali and alkaline earth metal sensor

1992-06-08

1994-08-09

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

20415315, G01N 27411

Patent

active

053363892

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.

REFERENCES:
patent: 3794569 (1974-02-01), Kawai et al.
patent: 4166019 (1979-08-01), Roy et al.
patent: 4217179 (1980-08-01), Fray
patent: 4645571 (1987-02-01), Dubreuil et al.
patent: 5112456 (1992-05-01), Worrell et al.

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