Absorbents for airbourne formaldehyde

Details Absorbents for airbourne formaldehyde Absorbents for airbourne formaldehyde

B - Operations, Transporting

01

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252/35, 260/574.

B01J 20/04 (2006.01) A62B 19/00 (2006.01) A62D 9/00 (2006.01) B01D 53/34 (2006.01) B01J 20/02 (2006.01)

Patent

CA 1215961

ABSTRACT OF THE DISCLOSURE A composition of matter comprising a perman- ganate salt adsorbed or chemisorbed onto a solid alkaline support useful in a method for irreversibly removing or decreasing the amount of formaldehyde in the atmosphere. The composition further provides a color change indica- tion when the formaldehyde absorbing characteristic is exhausted. The composition can be employed in molded, pellet, particle or powder form as, for example, in a respirator filter cartridge.

471829

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