Patent ID: 6867233

Claim:
A stabilized, concentrated, acidic antimicrobial composition that forms a substantially clear diluted aqueous composition upon dilution, said stable, concentrated, acidic antimicrobial composition comprising: (a) from about 60% to about 80%, by weight of said concentrated composition, of an organic acid; (b) from about 1% to about 80%, by weight of said concentrated composition, of C 6 -C 18 alkyl sulfate surfactant; (c) polypropylene glycol; (d) a member selected from the group consisting of sodium carbonate, sodium bicarbonate, magnesium carbonate hydroxide and magnesium carbonate; (e) optionally, toxicologically-acceptable anti-foaming agent; (f) optionally, toxicologically-acceptable preservative; (g) optionally, perfume, flavoring agent, and/or coloring agent; and (f) the balance comprising compatible, toxicologically-acceptable inert and/or minor ingredients; wherein said concentrated composition has a pH of from about 2 to about 5 upon dilution; and wherein the ratio of said polypropylene glycol to said surfactant is from about 10:1 to about 1:10 to about 10:2.