Low pH Detergent Patented by P&G

US Patent: US 12,338,412 B2. (Sarah Ann Delaney, Hebron, KY and James William Holder, Fort Thomas, KY). Assignee: Procter & Gamble, Cincinnati

Procter & Gamble scientists patented a detergent composition comprising:

• From about 1% to about 50% of a sulfated surfactant selected from the group R′—O—(C2H4O)n—SO3M, ROSO3−M+, and mixtures thereof, wherein R′ and R are alkyl groups having 14 or more carbons, wherein n is from about 1 to 20, and wherein M is a salt-forming cation;

• an organic acid comprising citric acid;

• a fluorescent whitening agent; and

• from about 0.25% to about 10% of an alkalizing agent; wherein the composition has a pH of about 2 to about 3 when measured neat; wherein the composition is substantially free of sulfated surfactant according to R′—O—(C2H4O)n—SO­3M and ROSO3−M+, wherein R′ and R are alkyl groups having fewer than 14 carbons; and wherein the composition is substantially free of peroxide bleach.