High temperature reference electrode

Details High temperature reference electrode High temperature reference electrode

1979-06-28

1981-09-22

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2730

Patent

active

042908728

ABSTRACT:
A hydrogen reference electrode is disclosed which is applicable to measuring systems for determining the oxygen content in high temperature water in the range of 400.degree. F. to the critical point of water of approximately 713.degree. F. at which it co-exists in the liquid and vapor states and which water is treated to provide a reducing atmosphere. The reference electrode is formed as a closed end tube of palladium-Silver alloy material pressurized with hydrogen gas and enclosed in a perforated sleeve which allows water to be trapped in the space between the alloy tube and the sleeve where the water is saturated with hydrogen permeating through the wall of the alloy tube.

REFERENCES:
patent: 1846354 (1932-02-01), Parker et al.
patent: 2886497 (1959-05-01), Butler
patent: 3701632 (1972-10-01), Lovelock
patent: 3835013 (1974-09-01), Grubb et al.
J. V. Dobson et al., J. Chem. Soc., Faraday Trans., 1,68, pp. 749-763, (1972).
J. V. Dobson et al., NACE, preprint No. D-9, Jan. 1973.
Digby D. MacDonald, Corrosion, vol. 34, No. 3, pp. 75-84, (1978).
R. S. Greely et al., "Electromotive Force Studies in Aqueous Sol'ns", vol. 64, p. 652, May 1960.

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