Solid composition releasing chlorine dioxide
US5399288A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1993 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Jun 30, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B11/024
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a solid composition comprising a water soluble chlorite salt, an oxidizing chlorine releasing agent, selected among sodium- or potassium-dichloro-s-triazinetrione or trichloro-s-triazinetrione, and a proton donor serving as a water soluble agent capable of lowering the pH of the aqueous solution to less than 3. The chlorite salt is advantageously selected among the sodium and potassium salts. The proton donor is advantageously selected among sodium- or potassium-hydrogen sulphates and pyrosulphates or among citric acid and malic acid. In said composition, the stochiomolecular ratio of the various components is suitably chlorite salt: oxidizing chlorine releasing agent: proton donor 4:1:3. The invention relates also to an aqueous solution in which the above composition is dissolved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.