Abstract This disclosure relates to abrasive cleansing compositions having particular utility as a metallic stain remover from hard surfaces such as porcelain, comprising an oxidant capable of oxidizing the metal in a practical time such as the metallic ions ferric, stannous, cupric and mercuric, a halide promotor, and an abrasive, said composition having a pH of 0.5 - 5. Additives such as detergents, perfumes, fillers, colorants, etc. may be included provided they do not adversely effect the stain removing properties of the composition. Although aluminum pot marks are most often encountered in normal household cleaning, said cleansers are effective against other metallic stains such as iron, tin, magnesium, etc.
A composition as defined in claim 1 wherein said oxidant is selected from the group consisting of cupric chloride, ferric chloride, stannous chloride, cupric nitrate-sodium chloride, cupric sulfate-sodium chloride, cupric sulfate-potassium bromide, cupric acetate-sodium bromide, mercuric chloride, ferric nitrate-sodium chloride and silver nitrate.
Claim 2
Dependent Claim
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A composition as defined in claim 1 wherein said abrasive is selected from the groups consisting of silex, feldspar, ground quartz, pumice, chalk, tripoli, kieselguhr and diatomaceous earth.
Claim 3
Dependent Claim
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A composition as defined in claim 1 further containing hydrogen peroxide as a supplementary oxidant.
Claim 4
Dependent Claim
12 words
A composition as defined in claim 1, wherein the abrasive is silex.
Claim 5
Dependent Claim
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A composition as defined in claim 1, which also contains a water-soluble, organic anionic, cationic or nonionic surface active agent non-reactive with the metal salt oxidant.
Claim 6
Dependent Claim
15 words
A composition as defined in claim 1, wherein the metal salt oxidant is cupric chloride.