Accession Number:

ADA231693

Title:

Spectroscopic Analyses and Performance of Copper/Zinc Impregnated, Activated Carbons

Descriptive Note:

Final rept. Aug 1989-Aug 1990

Corporate Author:

CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD

Report Date:

1990-12-01

Pagination or Media Count:

37.0

Abstract:

The U.S. Army Chemical Research, Development and Engineering Center is presently developing chromium-free carbons for collective and individual air purification systems. Spectroscopic analyses were performed on similar copper zinc impregnated carbon samples prepared from a laboratory and production scale process. These samples displayed different levels of hydrogen cyanide protection. The difference in the performance was attributed to the location of copper within the carbon granules. In addition, copper was found to leach from the carbon granule during prolonged humid exposure. The leaching of copper resulted in a decrease in the level of hydrogen cyanide protection, as evidenced by premature breakthrough of a reaction product, cyanogen.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE