Description

Benzenesulfonic Acid, Hexadecyl(Sulfophenoxy)-, Disodium Salt is a high-purity, synthetic anionic surfactant derived from benzenesulfonic acid with a long-chain alkyl group. This compound is valued for its excellent emulsifying, dispersing, and wetting properties, making it a critical performance additive in demanding formulations. It is primarily utilized by manufacturers in the industrial cleaning, textile processing, agrochemical, and personal care industries where stable surfactant performance is required.

Application

• Primary surfactant and emulsifier in industrial and institutional (I&I) cleaning formulations.
• Wetting and dispersing agent in agrochemical concentrates (e.g., suspension concentrates, wettable powders).
• Key component in textile auxiliaries for scouring, dyeing, and finishing processes.
• Emulsifier and stabilizer in the production of polymer emulsions and latex.
• Additive in personal care products such as shampoos and body washes for enhanced lather and cleansing.
• Dispersant for pigments and fillers in various specialty chemical applications.
• Detergent builder and co-surfactant in heavy-duty liquid and powder detergents.

Basic Information

Product Name	Benzenesulfonic Acid, Hexadecyl(Sulfophenoxy)-, Disodium Salt
CAS No.	65143-89-7
Molecular Formula	C28H40Na2O7S2
Molecular Weight	598.70 g/mol
Synonyms	Disodium Hexadecyl Diphenyl Ether Disulfonate; Sodium Hexadecyl Diphenyl Oxide Disulfonate; DOWFAX™ 8390 Surfactant; C16-DADS; 1-Hexadecyl-2,4-diphenoxybenzenedisulfonic Acid Disodium Salt; Dodecyl Diphenyl Ether Disulfonate, Sodium Salt (C16 variant); Anionic Surfactant 65143-89-7
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, Hexadecyl(Sulfophenoxy)-, Disodium Salt is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets precise specifications for active content, ionic character, and impurity profiles. A comprehensive Certificate of Analysis (COA) documenting identity, assay, and key physical-chemical parameters is provided with every shipment to guarantee consistency and performance for your applications.

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 original container tightly sealed to prevent absorption of atmospheric moisture which may affect product performance.

Specification

Item	Specification
Appearance	Off-white to light tan powder or flakes
Identification (IR)	Conforms to structure
Assay (Active Matter)	Min. 90%
Moisture Content	Max. 5.0%
pH (1% Solution)	6.0 - 9.0
Sodium Sulfate	Max. 2.0%

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