Hopcalite


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Hopcalite

 

a catalyst on which carbon monoxide (CO) is oxidized to carbon dioxide (CO2) by atmospheric oxygen; a mixture of manganese, copper, and silver oxides.

Hopcalite is used in supplementary gas mask cartridges for work in an atmosphere containing dangerous concentrations of CO and in devices for controlling the CO content in a room. The action of these devices is based upon their sensitivity to the heat released during the catalytic oxidation of CO to CO2. Water vapors ruin the catalyst. It is also ineffective at negative temperatures.

References in periodicals archive ?
It's filter will transform cabon monoxide to carbon dioxide with the hopcalite that is in the filter," Allali says.
The masks use hopcalite, a manga-nese/copper oxide filter to convert carbon monoxide into carbon dioxide.
EPA has found that one AAS analyzer, the Lumex RA915, is comparable in sensitivity and accuracy with Hopcalite tubes.
The passive dosimeters used hopcalite as the solid sorbent, which was digested with nitric and hydrochloric acid.
0] levels in the home measured with Hopcalite (SKC, Inc.
Air sampling with Hopcalite absorbent tubes and sampling pumps can be done for clearance sampling after a cleanup has been performed, but they require laboratory analysis.