Abstract: Phase-stable, hard surface cleaners are provided comprising an acidic aqueous phase in which a linear alkyl aryl sulfonic acid and an alkali metal peroxymonosulfate are dissolved. The former component can provide improved chemical stability of the solubilized peroxymonosulfate, and the two components, when present in sufficient amount, result in a flowable, plastic liquid which is capable of stably suspending abrasives.

Abstract: Phase, stable, hard surface cleaners are provided comprising an acidic aqueous phase in which a linear alkyl aryl sulfonic acid and an alkali metal peroxymonosulfate are dissolved. The former component can provide improved chemical stability of the solubilized peroxymonosulfate, and the two components, when present in sufficient amounts, result in a flowable, plastic liquid which is capable of stably suspending abrasives.

Abstract: Hard surface acid cleaners providing surprisingly fast acting and effective cleaning results across a wide variety of problematic cleaning areas, and methods for making the same are made by combining alkyl aryl sulfonic acids and water.The preferred alkyl aryl sulfonic acids are alkyl benzene sulfonic acids of the general structure ##STR1## wherein R is alkyl averaging 5 to 20 carbon atoms in length. Additionally, solvents, antimicrobial compounds, defoamers, thickeners and other cleaning adjuvants may be added to these hard surface acid cleaners.