Two-part disinfectant system and related methods
View Patent ↗The present disclosure is drawn to a disinfectant system which can be used to disinfect surfaces. The system includes a first chamber containing a first solution and a second chamber containing a second solution. The first solution can include an alcohol, an organic carboxylic acid, and from 0.01 ppm, to 1,000 ppm by weight of a transition metal or alloy thereof based on the first solution weight content. The second solution can include hydrogen peroxide. The system further includes a dispenser through which the system is configured to mix and dispense the first solution and the second solution immediately before being dispensed. A peracid composition is formed upon mixing of the first and second solutions.
1. A disinfectant system comprising:
a dispenser;
a first chamber in fluid communication with the dispenser, the first chamber containing a first aqueous solution comprising (A) polyvinyl alcohol, (B) 3% to about 20% by weight of an organic carboxylic acid selected from the group consisting of citric acid, acetic acid, formic acid, oxalic acid, propanoic acid, lactic acid, butanoic acid, pentanoic acid, hexanoic acid, adipic acid, benzoic acid, and combinations thereof, and (C) 10 ppm to about 1,000 ppm by weight colloidal transition metal particles selected from the group consisting of colloidal silver metal particles, colloidal silver alloy particles, and combinations thereof; and
a second chamber in fluid communication with the dispenser, the second chamber containing a second aqueous solution comprising 0.5% to about 10% by weight of an activator selected from the group consisting of hydrogen peroxide, methyl ethyl ketone peroxide, carbamide peroxide, potassium superoxide, lithium peroxide, barium peroxide, sodium peroxide, calcium peroxide, strontium peroxide, magnesium peroxide, sodium percarbonate, sodium peroxide, potassium peroxide, and combinations thereof.
2. The system of claim 1 , wherein the system is substantially free of chlorine and bromine-containing components.
3. The system of claim 1 , wherein the system is substantially free of iodophore-containing components.
4. The system of claim 1 , wherein the system is substantially free of phenolic-containing components.
5. The system of claim 1 , wherein the system is substantially free of quaternary ammonium-containing components.
6. The system of claim 1 , wherein the concentration of polyvinyl alcohol is 0.05% to 10% by weight of the first aqueous solution.
7. The system of claim 1 , wherein the concentration of polyvinyl alcohol is 0.1% to 5% by weight of the first aqueous solution.
8. The system of claim 1 , wherein the concentration of polyvinyl alcohol is 0.1% to 1% by weight of the first aqueous solution.
9. The system of claim 1 , wherein the concentration of the colloidal transition metal particles is 10 ppm to 300 ppm by weight of the first aqueous solution.
10. The system of claim 1 , wherein the colloidal transition metal particles are colloidal silver metal particles.
11. The system of claim 1 , wherein the organic carboxylic acid is citric acid.
12. The system of claim 1 , wherein the organic carboxylic acid is acetic acid.
13. The system of claim 1 , wherein the concentration of the organic carboxylic acid is 5% to about 15% by weight of the first aqueous solution.
14. The system of claim 1 , wherein the concentration of the organic carboxylic acid is 7% to about 13% by weight of the first aqueous solution.
15. The system of claim 1 , wherein the activator is hydrogen peroxide.
16. The system of claim 1 , wherein the first aqueous solution is pressurized.
17. The system of claim 1 , wherein the second aqueous solution is pressurized.
18. The system of claim 16 , wherein the second aqueous solution is pressurized.