Combustible gas detecting element

Details Combustible gas detecting element Combustible gas detecting element

1979-02-15

1980-12-23

Turk, Arnold

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

73 27R, 324 71SN, 338 34, 422 98, G01N 2712

Patent

active

042410193

ABSTRACT:
Combustible gas detecting element for detecting the concentration of a combustible gas such as isobutane, ethane, propane and hydrogen. It comprises .gamma.-Fe.sub.2 O.sub.3, .gamma.-Al.sub.2 O.sub.3 and at least one of La, Ce, Pr and Nd in terms of La.sub.2 O.sub.3, Ce.sub.2 O.sub.3, Pr.sub.2 O.sub.3 and Nd.sub.2 O.sub.3, respectively. This gas detecting element is an improvement over .gamma.-Fe.sub.2 O.sub.3, and is advantageous for its highly stable load life even under severe conditions of a high temperature and a high humidity and for its high sensitivity to a combustible gas.

REFERENCES:
patent: 3999947 (1976-12-01), Mihara et al.
patent: 4045178 (1977-08-01), Okinada et al.
Moeller, "Inorganic Chemistry-An Advanced Textbook", John Wiley & Sons, Inc., New York, 1952, p. 754.

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