Near tricritical point compositions containing bleach and or biostatic agent

A liquid cleaning composition having a surface tension of about 10 to 35 mN/m and incorporating 0 to 30 wt. % of a peroxygen bleach wherein said peroxygen bleach is selected from the group consisting of hydrogen peroxide, sodium perborate, sodium percarbonate, and sodium carbonate proxyhydrate and mixtures thereof and about 0.2 to about 10 wt. % of a biostatic agent wherein said biostatic agent is selected from the group consisting of C.sub.8 -C.sub.16 alkyl dimethyl benzyl ammonium chloride, C.sub.12 -C.sub.20 alkyl tri-methyl ammonium chloride, C.sub.12 -C.sub.20 alkyl dimethyl ammonium halide, C.sub.2 -C.sub.4 alkyl chloride, 3 tri-methoxy silyl, propyl octadecyl dimethyl ammonium chloride and cis-1-acetyl4-›4››-(2,4-diclorophenyl)-2-(1H-imidazol-lylmethyl)-1,3 dioxalan-4-yl! methoxy!phenyl! piperazine, and at least a polar solvent, a water soluble or water dispersible low molecular weight amphiphile and a non-polar or weakly polar solvent and deriving from three co-existing liquid phases which are capable of being converted into one single phase according to a reversible equilibrium, wherein the first phase is the most abounding with the polar solvent, the second phase is the most abounding with the water soluble or water dispersible low molecular weight amphiphile and the third phase is the most abounding with the non-polar solvent or weakly polar solvent, and the interfacial tension between said first phase and said second phase is 0 to about 1.times.10.sup.-3 mN/m, and the interfacial tension between second phase and third phase is a 0 to about 1.times.10.sup.-3 mN/m, and the interfacial tension between first phase and third phase is 0 to about 1.times.10.sup.-3 mN/m, wherein said polar solvent is at a concentration about 55 to about 95 wt. % and said amphiphile is present at a concentration of about 1 to 23 wt. % and said nonpolar solvent or weakly polar solvent is present at a concentration of about 1 to about 15 wt. %.