What Is Sodium Dimethyl 5-Sulphonatoisophthalate?

Sodium Dimethyl 5-Sulphonatoisophthalate is a specialized organic sulfonate compound widely used in industrial and commercial applications, particularly in textile dyeing, PET resin production, and water treatment chemicals. Known for its excellent solubility, heat stability, and compatibility with polymers, this compound plays a vital role in enhancing product performance in dyeing processes and in the manufacturing of high-performance plastic materials.

Chemical Structure and Characteristics

Sodium Dimethyl 5-Sulphonatoisophthalate is a sulfonated derivative of isophthalic acid, modified with two methyl ester groups and one sulfonic acid group (neutralized with sodium). This structure imparts excellent hydrophilicity, chemical reactivity, and thermal stability, making it compatible with both aqueous systems and synthetic polymers.

Specification

Related Products

Applications

Textile Dye Dispersants
One of the primary uses of Sodium Dimethyl 5-Sulphonatoisophthalate is as an intermediate for dye dispersants. It enhances the dispersibility, solubility, and stability of disperse dyes, particularly in high-temperature dyeing of polyester fabrics.

Polyester Modification (PET Resin Additive)
It is widely used in the copolymerization of polyethylene terephthalate (PET) to produce cationic dyeable polyester (CDP). This modification improves the dye uptake and shade brightness of PET fibers and films.

Water Treatment and Cleaning Agents
Its strong polar nature and water solubility make it useful in formulations for detergents, cleaners, and dispersants in industrial water systems.

Plastic and Coating Additive
Acts as a functional monomer or additive to improve properties like antistatic behavior, hydrophilicity, and dye receptivity in specialty polymers and coatings.

Surfactant and Emulsifier Intermediate
Serves as a raw material for manufacturing sulfonated surfactants and other emulsifying agents.

Advantages and Functional Benefits

Excellent Water Solubility

Improved Dye Compatibility for polyester fibers

Thermal and Chemical Stability

High Purity and Low Impurities

Versatile Use Across Industries

Eco-Friendly Profile in dyeing and polymer applications

Market Outlook

The growing demand for high-performance polyester fibers and functional dyes is driving the global consumption of Sodium Dimethyl 5-Sulphonatoisophthalate. With increasing interest in sustainable and efficient dyeing processes, this compound is expected to maintain a strong market position as a critical functional additive.

Lifeworth – Reliable Supplier and Manufacturer

Lifeworth is a trusted supplier and manufacturer of Sodium Dimethyl 5-Sulphonatoisophthalate. The company has passed international certifications including ISO9001, ISO14001, and FSSC22000, and adheres to strict quality control standards throughout the production process. We can supply Sodium Dimethyl 5-Sulphonatoisophthalate powder bulk,our annual output of 99% SIPM powder exceeds 10,000 tons, secondly we also supply 5-Sulfoisophthalic Acid Monosodium Salt 5-SSIPA, with an annual output of more than 8,000 tons of 5-SSIPA, all products comply with international standards. Currently, the products have been exported to more than 60 countries around the world, including Europe, Asia, and Africa, accounting for more than 20% of the global market. occupancy, product quality is well recognized by customers.

If you want to buy Sodium Dimethyl 5-Sulphonatoisophthalate, but you can not find where to buy it, kindly contact us :sales@naturallifeworth.com, we will give you best price best quality and best service.

Conclusion

Sodium Dimethyl 5-Sulphonatoisophthalate is a highly functional sulfonated intermediate with broad applications across textiles, plastics, and chemical industries. Its unique structure provides excellent solubility, compatibility, and thermal resistance, making it a valuable component in modern manufacturing. As a professional supplier and manufacturer, Lifeworth delivers consistent quality, competitive pricing, and flexible service to meet your production and formulation needs.

Reference:

https://www.chembk.com/en/chem/Sodium%20Dimethyl%20m-Phthalate%205-Sulphonate

Package:

1.1-5kg sample order we can provide aluminum foil bag package.

2.5-10kg order we can provide aluminum foil bag package.

3.Liquid packaging: 200kg/drum

Contacts:

E-Mail:sales@naturallifeworth.com
Mobile: 0086-18292562757
Whatsapp: 0086-18292562757