Description

Octadecylbenzenesulphonic Acid is a high-purity, long-chain alkylbenzene sulfonic acid derivative, serving as a critical intermediate and surfactant precursor. Its value lies in its ability to impart excellent emulsifying, wetting, and detergent properties in complex formulations. This product is essential for manufacturers in the industrial cleaning, agrochemical, and lubricant additive sectors seeking reliable performance and consistent quality.

Application

• Primary raw material for the synthesis of calcium and sodium sulfonate detergents used in lubricating oil and grease formulations.
• Key intermediate in the production of specialty surfactants and emulsifiers for industrial and institutional cleaning products.
• Acid catalyst and emulsifying agent in the manufacture of pesticides and agrochemical formulations.
• Intermediate for textile auxiliaries, providing scouring and wetting properties.
• Precursor in the synthesis of oil-soluble petroleum sulfonates for enhanced oil recovery (EOR) and corrosion inhibition.
• Used in the production of metalworking fluid additives and rust preventatives.

Basic Information

Product Name	Octadecylbenzenesulphonic Acid
CAS No.	93820-24-7
Molecular Formula	C24H42O3S
Molecular Weight	410.66 g/mol
Synonyms	Stearylbenzenesulfonic Acid; n-Octadecylbenzenesulfonic Acid; 1-Octadecylbenzenesulfonic Acid; Benzenesulfonic acid, octadecyl-; Dodecylbenzenesulfonic Acid, Stearyl Homologue; OBSA; Long-chain Alkylbenzene Sulfonic Acid
EINECS	Contact for details

Quality Control

Our Octadecylbenzenesulphonic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your technical requirements.

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) and a strong acid/organic solvent; ensure containers are kept tightly sealed to exclude moisture and separate from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Viscous liquid to paste
Color	Light yellow to amber
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0 %
Free Sulfuric Acid	≤ 2.0 %
Water Content	≤ 1.0 %
Unsulfonated Oil	≤ 3.0 %

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