Freon gas detecting element

Details Freon gas detecting element Freon gas detecting element

1981-08-18

1983-10-04

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

324 715, 338225, 422 98, 436126, G01N 2712

Patent

active

044077785

ABSTRACT:
Freon gas detecting element for detecting the presence of freon gas with of a pair of electrodes, a gas detecting body made of a metal oxide semiconductor and covering the pair of electrodes, and a catalytic layer coated on the gas detecting body. The catalyst layer is made of at least one element selected from the group consisting of V, Mo and W supported by one catalyst carrier selected from the group consisting of Al.sub.2 O.sub.3, SiO.sub.2, and SiO.sub. 2 - Al.sub.2 O.sub.3.

REFERENCES:
patent: 4045178 (1977-08-01), Okinaka et al.
patent: 4259292 (1981-03-01), Ichinose et al.

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