Description

Disodium Dodecyl(Sulphonatophenoxy)Benzenesulphonate is a high-performance anionic surfactant and hydrotrope. This compound is valued for its exceptional ability to enhance the solubility and stability of other surfactants and active ingredients in concentrated aqueous formulations. It is primarily needed by manufacturers in the detergent, agrochemical, and industrial cleaning sectors seeking to improve the clarity, viscosity, and performance of their liquid products.

Application

• Detergent & Cleaning Formulations: Acts as a key hydrotrope and coupling agent in liquid laundry detergents, dishwashing liquids, and hard surface cleaners to prevent phase separation and maintain clarity.
• Agrochemicals: Used in pesticide and herbicide formulations to improve the solubility and tank-mix compatibility of active ingredients, ensuring stable emulsifiable concentrates (ECs) and suspension concentrates (SCs).
• Industrial & Institutional (I&I) Cleaners: Enhances the stability and efficacy of high-alkaline or acidic cleaning products used in food processing, dairy, and transportation industries.
• Personal Care: Employed in certain rinse-off products like shampoos and body washes as a solubilizer for fragrances and other hydrophobic components.
• Textile Processing: Functions as a wetting agent and dispersant in dye baths and finishing chemicals to promote even application.
• Oilfield Chemicals: Can be utilized in drilling muds and stimulation fluids as a surfactant to modify interfacial tension.

Basic Information

Product Name	Disodium Dodecyl(Sulphonatophenoxy)Benzenesulphonate
CAS No.	28519-02-0
Molecular Formula	C30H44Na2O7S2
Molecular Weight	642.78 g/mol
Synonyms	Disodium 4-dodecyl-2-(4-sulfophenoxy)benzenesulfonate; Disodium 4-dodecyl-2-[(4-sulfophenyl)oxy]benzenesulfonate; Dodecyl diphenyl ether disulfonate, disodium salt; SXS (common industry abbreviation); Sodium xylene sulfonate analog (higher chain); Hydrotrope ST; Dowfax Hydrotrope (example trade name); Anionic surfactant 28519-02-0
EINECS	249-125-4

Quality Control

Our Disodium Dodecyl(Sulphonatophenoxy)Benzenesulphonate is manufactured under a stringent quality management system. Each batch undergoes rigorous testing including assay, identification, and impurity profile analysis to ensure consistency and performance. Certificates of Analysis (COA) documenting purity, active matter content, and key physical parameters are available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the original container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect flow properties and performance.

Specification

Item	Specification
Appearance	Off-white to light yellow powder or flakes
Identification (IR)	Conforms to structure
Assay (Active Matter)	Min. 90%
Moisture Content	Max. 5.0%
pH (1% Solution)	7.0 - 9.5
Sodium Sulfate	Max. 3.0%
Heavy Metals (as Pb)	Max. 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.