Carbon monoxide monitoring system

Details Carbon monoxide monitoring system Carbon monoxide monitoring system

1978-06-05

1981-03-17

Turk, Arnold

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

252408, 422 60, 422 86, G01N 2129, G01N 2177, G01N 3122

Patent

active

042566940

ABSTRACT:
Colorimetric indicator material comprising alumina impregnated with permanganate ion and silver ion which changes color from purple to brown in the presence of carbon monoxide is disclosed. A personal monitor containing permanganate ion and silver ion impregnated alumina which changes color completely when the carbon monoxide exposure over a given period of time exceeds a predetermined concentration is disclosed.

REFERENCES:
patent: 2408164 (1946-09-01), Foster
patent: 2569895 (1951-10-01), Main-Smith et al.
patent: 2961303 (1960-11-01), Wiswesser
patent: 3112999 (1963-12-01), Grosskopf
patent: 3755192 (1973-08-01), Rottig et al.
patent: 3847552 (1974-11-01), Hobgood et al.
patent: 3966440 (1976-06-01), Roberts
patent: 3985017 (1976-10-01), Goldsmith
Katz et al., "Oxidation of Carbon Monoxide in Air by Silver Permanganate", Ind. & Eng. Chem., vol. 42, p. 345 (1950).

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