Composition for the production of chlorine dioxide using non-iodo interhalides or polyhalides and methods of making and using the same
View Patent ↗A composition for the generation of chlorine dioxide including at least one non-iodo interhalide, polyhalide or salt thereof having the formula Br m Cl n F o X p wherein m=0–3, n=0–4, o=0–3, p=0–2, X is a cationic moiety and with the provisos that m+n+o cannot be zero; if m+n+p<2, or mixtures thereof, and at least one source of chlorite ions.
1. A biocidal or bleaching composition comprising:
a) at least one non-iodo interhalide, polyhalide, or salt thereof having at least one bromide atom in an oxidation state of 0–7, and at least one fluoride atom or at least one chloride atom in an oxidation state of 1–7, or mixtures thereof; and
b) a source of chlorite ions;
wherein said chlorite ions are oxidized to chlorine dioxide in the presence of said at least one non-iodo interhalide, polyhalide, or salt thereof.
2. The composition of claim 1 wherein said composition has a pH of about 3.5–9.
3. The composition of claim 1 wherein said composition has a pH of about 5–8.
4. The composition of claim 1 wherein the ratio of chlorite ions to said at least one non-iodo interhalide, polyhalide, or salt thereof is about 0.3 to about 3.
5. The composition of claim 1 wherein said at least one non-iodo interhalide, polyhalide, or salt thereof is a salt having at least one cationic moiety selected from the group consisting of sulfonium ions, phosphonium ions, quaternary ammonium ions, betaines, cholines, pyridinium salts and mixtures thereof.
6. The composition of claim 1 wherein said cationic moiety is selected from the group consisting of choline chloride, chlorine bitartrate, acetyl choline, choline tartate, choline acetate, phosphatidyl choline, lecithin derivatives, betaines, glycine, carcosine, taurine, sphingomyelin and mixtures thereof.
7. The composition of claim 1 in a sustained release form.
8. The composition of claim 1 wherein said chlorite source is selected from the group consisting of a salt of an alkali metal, a salt of an alkaline earth metal, a salt of a transition metal and mixtures thereof.
9. The composition of claim 1 wherein said composition is at a concentration of about 0.1 to 400 grams per liter in an aqueous liquid.
10. The composition of claim 1 wherein said composition generates about 1 to about 1000 ppm chlorine dioxide.
11. The composition of claim 1 in the form of a powder, non-aqueous liquid, gel, aerosol or solid.
12. The composition of claim 1 wherein said composition has a pH of about 5–7.
13. A composition for the generation of chlorine dioxide, said composition comprising:
a) at least one non-iodo interhalide, polyhalide, or salt thereof having the formula
Br m Cl n F o X p
wherein m=1–3, n=0–4, o=0–3, p=0–2, X is a cationic moiety;
with the provisos that m+n+o cannot be <2, or mixtures thereof, and
b) at least one source of chlorite ions;
wherein said chlorite ions are oxidized to chlorine dioxide in the presence of said at least one non-iodo interhalide, polyhalide or salt thereof.
14. The composition of claim 13 wherein X is a metal cation, an ammonium compound, a protonated amine compound or a mixture thereof.
15. The composition of claim 14 wherein said at least one non-iodo interhalide, polyhalide or salt thereof is a salt having at least one cationic moiety selected from the group consisting of sulfonium ions, phosphonium ions, quaternary ammonium ions, betaines, cholines, pyridinium salts and mixtures thereof.
16. The composition of claim 15 wherein said cationic moiety is selected from the group consisting of choline chloride, chlorine bitartrate, acetyl choline, choline tartrate, choline acetate, phosphatidyl choline, lecithin derivatives, betaines, glycine, carcosine, taurine, sphingomyelin and mixtures thereof.
17. The composition of claim 14 wherein said at least one non-iodo interhalide, polyhalide or salt thereof is selected from the group consisting of Br 2 , BrCl, BrF, Br 3 − X + , BrCl 2 − X + BrFCl − X + , BrCl 4 − X + , BrF 4 − X + , ClBr 2 − X + wherein X is a metal cation, an ammonium compound, a protonated-amine compound or mixture thereof.
18. The composition of claim 14 in a condensed gas, liquid or solid.
19. The composition of claim 18 wherein said solid is a powder.
20. The composition of claim 18 wherein said composition is a solid and further comprises at least one solidifying agent selected from organic materials, inorganic materials and mixtures thereof.
21. The composition of claim 20 wherein said solidifying agent is organic selected from polyethylene glycols, ureas, acetates, fatty acids, surfactants, defoamers, builders, and mixtures thereof.
22. The composition of claim 21 wherein said solidifying agent is an inorganic hydratable salt selected from bicarbonates, carbonates, silicates, phosphates, sulfates and mixtures thereof.
23. The composition of claim 22 wherein said solidifying agent is capable of binding free water.