Sodium 2-naphthalenesulfonate

Sodium 2-naphthalenesulfonate (CAS 532-02-5) is an aromatic sulfonate salt. It is used in dye manufacturing, dispersant formulation, and specialty chemical synthesis.

Where is Sodium 2-naphthalenesulfonate used?

• Dye manufacturing: dispersing agent and intermediate
• Pigments and active ingredients: stable suspension in aqueous systems
• Textile processing: improves dye bath uniformity by preventing pigment agglomeration on fiber surfaces
• Coatings and inks: dispersant that stabilizes pigment slurries, extending shelf life and improving flow
• Synthesis: key intermediate in the production of beta-naphthol derivatives
• Construction: sulfonated naphthalene-based superplasticizers for concrete admixtures
• Water treatment formulators incorporate it for its surface-active properties.

Commercial specifications

• Purity levels commonly at 98% or higher depending on the intended industrial application
• Packaging typically ranges from 25 kg bags to bulk quantities