C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 7/06 (2006.01) C11D 7/28 (2006.01) C11D 7/32 (2006.01)
Patent
CA 2686590
The invention is directed to stabilized concentrated cleaning solutions comprising a source of hypochlorite ions and to a method for providing the stabilized concentrated cleaning solutions. The stabilized concentrated cleaning solutions according to the invention comprise a hydroxide ion source, hypochlorite ion source, and a chelating agent, and are provided simply by mixing the various components together. The stabilized concentrated cleaning solutions exhibit stability against, e.g., dilution with a diluent comprising amounts of copper, iron, nickel cobalt, etc., as well as storage for periods of from about 10 weeks to up to about 1 year without undergoing visible deterioration and/or a substantial deterioration in efficacy.
L'invention porte sur des solutions de nettoyage concentrées stabilisées comprenant une source d'ions hypochlorite, et sur un procédé pour obtenir les solutions de nettoyage concentrées stabilisées. Les solutions de nettoyage concentrées stabilisées selon l'invention comprennent une source d'ions hydroxyde, une source d'ions hypochlorite et un agent chélatant, et on les obtient simplement en mélangeant ensemble les divers composants. Les solutions de nettoyage concentrées stabilisées présentent une stabilité à l'encontre, par exemple, de la dilution avec un diluant comprenant des quantités de cuivre, de fer, de nickel, de cobalt, etc., ainsi que du stockage pendant des périodes de temps allant d'environ 10 semaines jusqu'à environ 1 année sans subir de détérioration visible ou de détérioration substantielle de l'efficacité.
Cassan Maclean
Ecolab Inc.
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