Description

Octylbenzenesulphonic Acid is a versatile organic acid surfactant belonging to the alkylbenzene sulfonate family. This compound is valued for its excellent surface-active properties, functioning as a powerful anionic surfactant and intermediate in numerous synthesis pathways. It is a critical raw material for manufacturers in the detergent, agrochemical, and polymer industries seeking effective emulsification, wetting, and dispersion capabilities.

Application

• Detergent & Cleaning Formulations: A key intermediate in the production of linear alkylbenzene sulfonate (LAS) surfactants for household and industrial cleaners.
• Emulsifier & Dispersant: Used in the formulation of agricultural chemicals (pesticides, herbicides) and emulsion polymerization processes.
• Chemical Synthesis: Serves as an acid catalyst and a sulfonating agent in various organic synthesis reactions.
• Textile & Leather Processing: Employed as a wetting agent, dye leveling agent, and auxiliary in processing baths.
• Metal Treatment & Electroplating: Acts as an additive in electroplating baths and metal cleaning solutions for improved surface wetting.
• Oilfield Chemicals: Utilized in drilling mud formulations and as a component in demulsifiers for crude oil processing.

Basic Information

Product Name	Octylbenzenesulphonic Acid
CAS No.	25321-43-1
Molecular Formula	C₁₄H₂₂O₃S
Molecular Weight	270.39 g/mol
Synonyms	p-Octylbenzenesulfonic Acid; 4-Octylbenzenesulfonic Acid; Octylbenzene Sulfonic Acid; OBSA; 1-Octyl-4-sulfobenzene; Benzenesulfonic acid, 4-octyl-; Dodecylbenzenesulfonic Acid (related, often mixed isomer); LAS Intermediate.
EINECS	246-846-9

Quality Control

Our Octylbenzenesulphonic Acid is produced under a stringent quality management system. Each batch is tested to ensure consistent purity, acidity, and performance characteristics. A comprehensive Certificate of Analysis (COA) detailing assay, sulfonic acid content, and impurity profile is provided with every shipment to guarantee it meets your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Due to its strong acid nature, containers should be made of corrosion-resistant materials like stainless steel or specific plastics (e.g., HDPE). Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	Viscous liquid, light brown to amber
Identification (IR)	Conforms
Assay (as sulfonic acid)	≥ 96.0 %
Free Sulfuric Acid	≤ 2.0 %
Water Content	≤ 1.5 %
Color (Hazen)	≤ 300
Specific Gravity (25°C)	1.05 - 1.10

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