Automatic dishwashing compositions containing aluminum salts

Details Automatic dishwashing compositions containing aluminum salts Automatic dishwashing compositions containing aluminum salts

C - Chemistry, Metallurgy

11

D

C11D 3/02 (2006.01) C11D 3/00 (2006.01) C11D 3/16 (2006.01) C11D 3/39 (2006.01) C11D 3/395 (2006.01) C11D 11/00 (2006.01)

Patent

CA 2221169

A composition for inhibiting lead corrosion of fine tableware washed in automatic dishwashers is disclosed. The composition comprises an aluminum salt which dissolves at a rate to deliver less than 0.56 mM aluminum (III) per minute at 42 ·C to a wash liquor, a bleaching agent, a builder and optionally a surfactant. The composition has a pH of less than about 10 is substantially free of silicates.

On décrit une composition destinée à inhiber la corrosion du plomb sur de la vaisselle délicate lavée dans des lave-vaisselle automatiques. Cette composition comprend un sel d'aluminium se dissolvant à une certaine vitesse, afin de donner à la liqueur de lavage moins de 0,56 mM d'aluminium (III) par minute, à une température de 42 ·C, un agent de blanchiment, un adjuvant ainsi qu'éventuellement un tensioactif. Cette composition possède un pH inférieur à environ 10 et elle est pratiquement dépourvue de silicates.

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