C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 7/26 (2006.01) C02F 5/08 (2006.01) C11D 1/62 (2006.01) C11D 1/65 (2006.01) C11D 3/20 (2006.01) C11D 3/34 (2006.01) C11D 7/08 (2006.01) C11D 17/00 (2006.01) C11D 1/24 (2006.01)
Patent
CA 2107939
A thickened, buffered aqueous acidic cleaning composition suitable for removing mineral deposits is provided. In one embodiment, the composition comprises a weak acid and its conjugate base wherein the weak acid has a pK a of approximately 2 to 3.5 and where the composition has a pH of approximately 2 to 3.5. Organic acids, such as citric acid, are particularly suited. The addition of a thickening system comprising cetyl trimethyl ammonium chloride and sodium xylene sulfonate or alkyl diphenylether sulfonate produces a viscoelastic composition in which the viscosity can be controlled by the level and/or ratio of the surfactant/counterion. Suitable stable adjuncts including fragrances, dyes, organic solvents, disinfectants, and bleaches can be added to the composition.
Blum Robert L.
Kong Stephen B.
Riches Mckenzie & Herbert Llp
The Clorox Company
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