Vinylsulfonic acid

Vinylsulfonic acid (CAS 1184-84-5), also known as Ethylenesulfonic acid, is a reactive sulfonic acid monomer used to introduce permanent anionic functionality into polymer chains.

Where is Vinylsulfonic acid used?

• Textile and leather: copolymerized into finishing agents that improve dye uptake and substrate wettability without washing out over time
• Water treatment: scale inhibitors and dispersants that perform across a broad pH range
• Paper: surface sizing and retention aid formulations where controlled charge density is critical
• Specialty plastics: comonomer in ion-exchange resins and antistatic coatings where permanent sulfonate groups are required
• It enables formulators and polymer chemists to engineer surface charge and ionic character.

Commercial specifications

• Aqueous solution, 25% and 50% concentrations
• Packaging: drums to IBC totes