Abstract: The present invention relates to aqueous alkaline built detergent compositions containing hydrogen peroxide. Alkaline conditions present particular difficulties for preventing the hydrogen peroxide from decomposing excessively rapidly during storage. Aqueous compositions containing a builder, especially polyphosphate or citrate, anionic sulphate or sulphonate surfactant, nonionic ethoxylate surfactant and hydrogen peroxide of acceptable peroxide stability can be obtained by employing an alcohol, preferably ethanol or isopropanol, or a polyhydroxy carboxylate, preferably gluconate, or especially both, in conjunction with a phosphonate, especially an ethylene amine methylene phosphonate. Many of such alkaline compositions are formulated to permit the anionic surfactant to work at or near to its optimum pH in conjunction with the builder.

Abstract: The present invention relates to aqueous alkaline bleach compositions containing hydrogen peroxide. Under alkaline conditions, it is particularly difficult to prevent the hydrogen peroxide decomposing excessively rapidly during storage, but the addition of an alkaline additive minimizes any change in the pH of washing solutions obtained by dissolution of generally bleach free washing compositions containing anionic surfactants. Hydrogen peroxide-containing aqueous alkaline bleach having acceptable peroxide stability can be obtained by employing ethanol or isopropanol in conjunction with a phosphonate, especially ethylene (diamino tetramethylene phosphonate,) particularly with a polyhydroxy carboxylate, preferably gluconate, or an amino acetate. The liquid bleach can contain a small proportion of a surfactant.

Abstract: The present invention relates to aqueous alkaline bleach compositions containing hydrogen peroxide. Under alkaline conditions, it is particularly difficult to prevent the hydrogen peroxide decomposing excessively rapidly during storage, but the addition of an alkaline additive minimizes any change in the pH of washing solutions obtained by dissolution of generally bleach free washing compositions containing anionic surfactants. Hydrogen peroxide-containing aqueous alkaline bleach having acceptable peroxide stability can be obtained by employing an alcohol, preferably ethanol, in conjunction with a phosphonate, especially ethylene (diamino tetramethylene phosphonate,) particularly with a polyhydroxy carboxylate, preferably gluconate, or an amino acetate. The liquid bleach can contain a small proportion of a surfactant.