Description

Undecylbenzenesulphonic Acid is a key organic sulfonic acid derivative, valued for its surfactant properties and role as a versatile chemical intermediate. Its significance lies in providing a hydrophobic alkyl chain attached to a hydrophilic sulfonic acid group, making it a fundamental building block for anionic surfactants and emulsifiers. This compound is essential for manufacturers in the detergent, agrochemical, and specialty chemical industries seeking to formulate high-performance cleaning agents, dispersants, and industrial processing aids.

Application

• Primary Surfactant Intermediate: Serves as a crucial raw material for the synthesis of linear alkylbenzene sulfonate (LABS) surfactants used in industrial and household detergents.
• Emulsifier and Dispersing Agent: Employed in the formulation of agrochemicals (pesticides, herbicides) and coatings to ensure stable emulsions and uniform dispersion of active ingredients.
• Textile and Leather Processing: Used as a wetting, scouring, and leveling agent in dyeing and finishing processes.
• Metal Working Fluids: Acts as a component in lubricants and corrosion inhibitors for metal cleaning and treatment.
• Enhanced Oil Recovery (EOR): Investigated for use in chemical flooding formulations to reduce interfacial tension and improve oil displacement.
• Polymerization Aid: Functions as an emulsifier or catalyst in certain emulsion polymerization processes.

Basic Information

Product Name	Undecylbenzenesulphonic Acid
CAS No.	50854-94-9
Molecular Formula	C17H28O3S
Molecular Weight	312.47 g/mol
Synonyms	1-Undecylbenzenesulfonic Acid; n-Undecylbenzenesulfonic Acid; Undecylbenzene Sulfonic Acid; 4-Undecylbenzenesulfonic Acid; p-Undecylbenzenesulfonic Acid; LABS Acid (C11); Linear Alkylbenzene Sulfonic Acid (C11 chain); Dodecylbenzenesulfonic Acid (isomeric mixture reference)
EINECS	Contact for details

Quality Control

Our Undecylbenzenesulphonic Acid is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity, composition, and performance. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, detailing key parameters such as assay, active matter content, and free oil levels to meet 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/organic solvent nature, containers should be kept tightly sealed to prevent moisture absorption and maintain product integrity. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Viscous brown liquid
Identification (IR)	Conforms
Assay (Active Matter)	≥ 96.0 %
Free Oil (as Undecylbenzene)	≤ 2.0 %
Sulfuric Acid	≤ 1.5 %
Water Content	≤ 1.0 %

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