Sodium p-dodecylbenzenesulfonate

Sodium p-dodecylbenzenesulfonate (CAS 2211-98-5), also marketed as SULFONAX, is an anionic surfactant used in industrial and institutional cleaning, emulsification, and dispersion.

Where is Sodium p-dodecylbenzenesulfonate used?

• Industrial and institutional cleaning: primary detergent active for degreasing hard surfaces, equipment, and process lines
• Textile wet processing: wetting, scouring, and dye bath emulsification for fiber penetration and uniform dye uptake
• Water treatment: dispersant and emulsifier to condition process water and control surface tension
• Printing and packaging: ink emulsification and press wash formulations
• It delivers foam generation, soil removal, and surface-active performance in aqueous and formulated systems.

Good to know: Personal care and cosmetic-grade material is available where formulation purity requirements demand tighter quality specifications.

Commercial specifications

• Active content typically 30% to 90% depending on grade and application