Decontamination compositions and methods of decontamination
AssigneeBattelle Memorial Institute
InventorsRamanathan S. Lalgudi, Richard Harris, Nathan Philip Gano, Erik W. Edwards
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Abstract
Decontamination compositions useful to decontaminate potentially toxic materials, such as PAH and others, present on clothing comprise an aqueous solution of a water soluble cerium salt or a dispersion of cerium oxide in water. The decontamination composition may optionally include at least one of an oxidizer, a surfactant, a co-solvent, a chelating agent, and a polymer. Methods of decontaminating clothing involve applying the decontamination composition to the clothing.
Claims19
A decontamination composition comprising:
- an aqueous solution of a water soluble cerium salt or a dispersion of cerium oxide in water;
- an oxidizer comprising hydrogen peroxide, sodium hypochlorite, sodium percarbonate, or combinations thereof;
- and
- an activator for the oxidizer when the oxidizer is hydrogen peroxide or sodium hypochlorite, or an optional activator when the oxidizer is sodium percarbonate;
- wherein a concentration of cerium ions in the decontamination composition is in a range from 1 to 500 ppm.
A decontamination composition consisting essentially of;
- an aqueous solution of a water soluble cerium salt;
- an oxidizer comprising hydrogen peroxide, sodium hypochlorite, sodium percarbonate, or combinations thereof;
- an activator for the oxidizer;
- and
- at least one of a surfactant, a co-solvent, a chelating agent, and a polymer.
A method of decontaminating clothing comprising:
- applying a decontamination composition to clothing containing toxic materials, PAH, or both, the decontamination composition comprising an aqueous solution of a water soluble cerium salt or a dispersion of cerium oxide in water;
- an oxidizer comprising hydrogen peroxide, sodium hypochlorite, sodium percarbonate, or combinations thereof;
- and
- an activator for the oxidizer when the oxidizer is hydrogen peroxide or sodium hypochlorite or an optional activator when the oxidizer is sodium percarbonate;
- wherein a concentration of cerium ions in the decontamination composition is in a range from 1 to 500 ppm.
Dependencies are inferred from the claim text.