Patents

Color Changing Detergent Patented by Ecolab

It is an alkaline composition with a pH-sensitive azo dye.

US Patent No. 12,129,449 B2 (Carter M. Silvernail, Kerrie E. Walters); Ecolab, Inc., has patented a color changing alkaline detergent composition.

It is comprised of 20-80 wt.% of an alkalinity source; 0.5-15 wt % of a defoaming agent comprising an alkoxylated nonionic surfactant; and a pH sensitive dye that an azo dye that exhibits a color change at a pH less than about 10.1.

The composition is free of sulfate and sulfonate surfactants.

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