Sodium petroleum sulfonate

Sodium petroleum sulfonate (CAS 68608-26-4) is a sulfonation-derived anionic surfactant produced from refinery base oil fractions. It functions as an emulsifier, corrosion inhibitor, and lubricity additive across metalworking and industrial maintenance applications.

In metalworking fluids, it emulsifies mineral oils into stable water-based cutting and grinding coolants, improving tool life and surface finish quality. This versatile chemical is essential for high-performance industrial manufacturing processes.

Oil field operators use it as a wetting and emulsifying agent in drilling muds and enhanced oil recovery formulations. In these environments, it helps mobilize crude from reservoir rock to improve overall extraction efficiency and output.

Rust-preventive compounds and corrosion-inhibiting coatings rely on it to displace moisture from metal surfaces. This ensures extended protection for metal components during long-term storage and international transit applications.

In textile and leather processing, it acts as a dispersant and wetting agent in dyebath formulations and fat-liquoring operations. Its chemical properties allow for uniform distribution of dyes and treatments across various organic substrates.

The product is supplied as a viscous liquid or paste, with active matter content typically ranging from 50% to 62%. Technical grade is the standard market form, with product lines often differentiated by molecular weight range.

Lighter cuts are preferred for emulsification performance, while heavier cuts are utilized for superior corrosion inhibition. Drum and IBC packaging are the conventional supply formats for industrial buyers and chemical distributors.