Decontamination solution and method

Abstract

A chemical warfare agent decontamination solution made up of about 20% of a quaternary ammonium complex containing benzyltrimethylammoniumchloride and benzyltriethylammonium chloride and about 20% by weight of an oxidizer, dissolved in a solvent, such as water or glycol, is provided. This solution is a noncorrosive, nontoxic, nonflammable decontaminant, which may also be used to neutralize organophosphorus agricultural chemicals.

What is claimed is:  
     
       1. A chemical warfare agent  decontamination composition for neutralizing chemical warfare agents or organophosphorus agricultural chemicals comprising between 15% to 25%, by weight of a quaternary ammonium complex, about 15% to about 25% by weight of a selected oxidizer, and a non-toxic, non-flammable solvent, wherein said composition has a pH between 8 and 12. 
     
     
       2. The composition according claim  1 , wherein the oxidizer is selected from the group consisting of the acids or salts of peracetate, perborate monohydrate, perborate tetrahydrate, monoperoxyphthalate, peroxymonosulfate, peroxydisulfate and percarbonate. 
     
     
       3. The composition according to claim  1 , wherein the oxidizer is hydrogen peroxide. 
     
     
       4. The composition according to claim  1 , wherein the quaternary ammonium complex consists of a mixture of benzyltrimethylammonium chloride and benzyltriethylammonium chloride. 
     
     
       5. The composition according to claim  4 , wherein the mixture consists of a ratio of about 5 parts benzyltrimethylammonium chloride, by weight, to about 1 part benzyltriethylammonium chloride, by weight. 
     
     
       6. The composition according to claim  5 , wherein the benzyltrimethylammonium chloride is about 16%, by weight, of the composition and the benzyltriethylammonium chloride is about 4%, by weight of the composition. 
     
     
       7. The composition according to claim  1 , wherein the solvent is water. 
     
     
       8. The composition according to claim  7 , wherein the solvent is about 25 to about 35%, by weight, of the composition. 
     
     
       9. The composition according to claim  1 , wherein the solvent is a diol. 
     
     
       10. The composition according to claim  9 , wherein the diol is selected from the group consisting of propylene glycol, 1,2-butanediol, 1,2-pentanediol, and 1,2-hexanediol. 
     
     
       11. The composition according to claim  10  wherein the diol is about 30%, by weight, of the composition. 
     
     
       12. The composition according to claim  1  further comprising a corrosion inhibitor. 
     
     
       13. The composition according to claim  12  wherein the corrosion inhibitor is selected from the group consisting of an amino alcohol, an amine or a polyamine. 
     
     
       14. The composition according to claim  1  wherein said composition further comprises a buffer, a stabilizer, a reaction catalyst or a preservative. 
     
     
       15. A chemical warfare agent  decontamination solution  composition for neutralizing chemical warfare agents or organophosphorus agricultural chemicals comprising: 
       about 10 to about 20%, by weight, of benzyltrimethyl ammonium chloride;  
       about 3 to about 10%, by weight, benzyltriethylammonium chloride;  
       about 20%, by weight hydrogen peroxide;  
       about 30%, by weight, inhibitor; and  
       about 30%, by weight, water.  
     
     
       16. A method for decontaminating  neutralizing chemical warfare agents or organophosphorus agricultural chemicals comprising the step of applying to a contaminated surface a chemical warfare agent  decontamination composition comprising between 15% to 25%, by weight of a quaternary ammonium complex, about 15% to about 25% by weight of a selected oxidizer, and a non-toxic, non-flammable solvent, wherein said composition has a pH between 8 and 12. 
     
     
       17. The method according to claim  16 , wherein the quaternary ammonium complex consists of a mixture of benzyltrimethylammonium chloride and benzyltriethylammonium chloride. 
     
     
       18. The method according to claim  17 , wherein the oxidizer is selected from the group consisting of the acids or salts of peracetate, perborate monohydrate, perborate tetrahydrate, monoperoxyphthalate, peroxymonosulfate, peroxydisulfate and percarbonate. 
     
     
       19. The method according to claim  17 , wherein the oxidizer is hydrogen peroxide. 
     
     
       20. A method for decontaminating  neutralizing chemical warfare agents comprising applying to a contaminated  surface contaminated with a chemical warfare agent the decontamination composition according to claim  15 . 
     
     
       21. A method for neutralizing organophosphorus agricultural chemicals comprising applying to a surface contaminated with an organophosphorus agricultural chemical the decontamination composition according to claim  15 .