Copper oleate

Copper oleate (CAS 1120-44-1, EC 214-307-4) is an organometallic copper salt derived from oleic acid, commercially known under names including Cuprex and Cupric Oleate. It carries no assigned E-code and is identified by the molecular formula C18H34O2.1/2Cu.

In lubricant and metalworking formulations, copper oleate functions as a boundary lubricant and mild corrosion inhibitor, forming a protective copper-organic film on metal surfaces under load. In textile and leather processing, it acts as a preservative and biocide, where the copper ion disrupts microbial cell membranes to prevent biological degradation of treated materials.

Copper oleate is supplied as a technical-grade solid and is subject to REACH registration requirements for EU import and use. Procurement quantities typically range from kilogram laboratory packs to bulk industrial consignments. Buyers should confirm supplier REACH compliance documentation and applicable SDS before placing orders.