Sodium allylsulfonate

Sodium allylsulfonate (CAS 2495-39-8), commonly abbreviated as SAS, is a reactive sulfonate monomer used in polymer chemistry and surface treatment.

Where is Sodium allylsulfonate used?

• Polymer manufacturing: copolymerizes with acrylic acid, acrylamide, or vinyl acetate to produce scale inhibitors and dispersants for water systems
• Electroplating and metal finishing: brightening and leveling co-monomer in nickel and chrome bath formulations, improving deposit uniformity and surface quality
• Textile and leather processing: grafts sulfonate groups onto fiber surfaces, enhancing dye uptake and wet fastness in synthetic fabrics
• Paper manufacturing: retention aids and surface sizing agents that improve sheet formation and ink receptivity
• It introduces permanent sulfonate functionality into polymer backbones, enabling controlled modification of surface charge, hydrophilicity, and ionic character.

Commercial specifications

• Solution concentrations typically around 40–50% w/w
• Solid forms commonly at 98% or higher purity
• Packaging from small drums to bulk quantities