초록 ▼

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 complete

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.

대표청구항 ▼

Colorimetric indicator material for the detection of carbon monoxide in ambient air comprising alumina having sorbed thereon a mixture containing silver ion and permanganate ion in a molar ratio of about 4:1 to about 1:4, said mixture, upon exposure to air containing carbon monoxide undergoing a col

Colorimetric indicator material for the detection of carbon monoxide in ambient air comprising alumina having sorbed thereon a mixture containing silver ion and permanganate ion in a molar ratio of about 4:1 to about 1:4, said mixture, upon exposure to air containing carbon monoxide undergoing a color change from purple to brown at a rate proportional to the ratio of silver ion to permanganate ion in said mixture and the atmospheric CO concentration.