Abstract: Impregnated activated carbon adsorbents for the removal of toxic materials from gas streams are used in a variety of respiration and collective filter applications. The activated carbon impregnated adsorbents in the present invention remain effective in removing toxic gases and/or vapors in military, industrial and other applications, and are free of chromium and its potential health hazards. Generally, these activated carbons are comprised of an activated carbon adsorbent impregnated so as to result in an activated carbon containing 0 to 14% copper and 2 to 16% zinc, optionally supplemented according to the desired characteristics with silver, triethylenediamine, and prepared with or without the use of organic acid. The adsorbent carbons of the present invention have been found to be effective for removing a variety of toxic gases and/or vapors.

Abstract: The instant invention is directed to an activated carbon impregnated with 0.1 to 10 percent, by weight, of an amine compound, which is solid and sublimes at 40.degree. C. or above, and having a moisture content after impregnation of 5.0 percent or less, by weight.The instant invention is also directed to a process for impregnating carbon comprising allowing an amine compound, which is solid and sublimes at the temperature at which said amine is applied, to sublime in the presence of an activated carbon.The instant invention is also directed to the use of the impregnated carbon in removing toxic gases from a gas stream comprising passing the gas stream through the impregnated carbon.