Potassium oleate

Potassium oleate (CAS 143-18-0) is the potassium salt of oleic acid, commercially available under trade names including FR 14, Nonsoul OK 1, Trenamine D-201, and Trenamine D-200. It carries no assigned E-code and is classified under HS code 2916.15.5100. It belongs to the fatty acid soap family within the broader surfactants category.

In metalworking fluids, potassium oleate functions as a lubrication agent and emulsifier, keeping oil-water cutting fluid systems stable under mechanical shear. In personal care formulations, it acts as an emollient and skin conditioner by forming a lipid-compatible film on the skin surface. Textile and leather processors use it for its cleaning and degreasing action during scouring operations.

Potassium oleate is supplied as a gray-tan paste and in powder or crystal form depending on grade. It is subject to REACH registration requirements for EU supply and may be sourced to FCC-grade specifications for food-contact or flavoring applications. Packaging formats typically include drums and IBCs for industrial quantities.