Description

Disodium 2,2'(Or 3,3')-Oxybis[5(Or 2)-Dodecylbenzenesulphonate] is a high-purity, anionic surfactant belonging to the alkyl diphenyl ether disulfonate (ADPEDS) chemical class. This compound is valued for its exceptional wetting, emulsifying, and dispersing properties, particularly in challenging aqueous and non-aqueous systems. It is a critical raw material for formulators in the agrochemical, industrial cleaning, and textile processing industries who require robust performance under high electrolyte concentrations and extreme pH conditions.

Application

• Agrochemical Formulations: Acts as a superior wetting agent, dispersant, and emulsifier in suspension concentrates (SC), wettable powders (WP), and emulsifiable concentrates (EC) for pesticides and herbicides.
• Industrial & Institutional (I&I) Cleaners: Used in heavy-duty alkaline and acidic cleaners, degreasers, and metal treatment baths where stability in harsh chemical environments is paramount.
• Textile Processing: Serves as a leveling agent, dispersant for dyes, and scouring aid in dyeing and finishing operations.
• Enhanced Oil Recovery (EOR): Investigated as a surfactant for chemical flooding due to its stability in high-salinity brines.
• Paint & Coating Additives: Functions as a pigment dispersant and grinding aid in water-based and solvent-based coating systems.
• Polymerization: Employed as an emulsifier in emulsion polymerization processes for synthetic rubbers and plastics.

Basic Information

Product Name	Disodium 2,2'(Or 3,3')-Oxybis[5(Or 2)-Dodecylbenzenesulphonate]
CAS No.	25167-32-2
Molecular Formula	C36H56Na2O8S2
Molecular Weight	726.93 g/mol
Synonyms	Disodium Dodecyl Diphenyl Ether Disulfonate; DOWFAX™ 2A1 (Trade Name); Sodium Dodecyldiphenyl Ether Disulfonate; ADPEDS; Alkyl Diphenyl Ether Disulfonate, Sodium Salt; Disodium 4,4'-Oxybis(Dodecylbenzenesulfonate); Disodium Bis(4-dodecylphenyl) Ether Disulfonate; Dodecyl Diphenyl Ether Disulfonic Acid, Disodium Salt
EINECS	246-672-9

Quality Control

Our production of Disodium Dodecyl Diphenyl Ether Disulfonate adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity and performance. Key parameters such as active matter content, sulfonate content, moisture, and inorganic salt levels are verified. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your specifications and industry standards.

Storage

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

Specification

Item	Specification
Appearance	Light yellow to amber viscous liquid or paste
Identification (IR)	Conforms to structure
Active Matter (Assay)	≥ 45.0 %
Disulfonate Content	≥ 40.0 %
Moisture (Karl Fischer)	≤ 3.0 %
Inorganic Salt (as Na2SO4)	≤ 3.0 %
pH (5% aqueous solution)	7.0 - 9.0

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