In situ reference electrode for diaphragm cells

Details In situ reference electrode for diaphragm cells In situ reference electrode for diaphragm cells

1978-05-22

1979-08-07

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204 98, 204195F, 204256, 204258, G01N 2730

Patent

active

041636988

ABSTRACT:
A method and apparatus for measuring the overvoltage of a gas producing electrode of a chlor-alkali diaphragm cell is disclosed. The method includes positioning an exposed metal tip of a reference electrode from about 0.2 to about 1.0 mm away from the gas producing electrode within a stream of gas produced by the gas producing electrode. The apparatus includes the reference electrode so positioned. Platinized platinum wire and a RuO.sub.2 --TiO.sub.2 coated Ti wire are preferred as the reference electrodes for cathode and anode, respectively.

REFERENCES:
patent: 3291714 (1966-12-01), Hall et al.
patent: 3632498 (1972-01-01), Beer
Reprint from Corrsion, vol. 16, No. 2, Feb. 1960, pp. 47t to 54t.

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