Description

Dodecylbenzenesulphonic Acid is a key organic sulfonic acid widely used as a versatile intermediate and surfactant precursor. Its primary commercial value lies in its role as the fundamental building block for the production of linear alkylbenzene sulfonate (LAS) detergents, one of the world's most common anionic surfactants. This high-purity acid is essential for manufacturers in the detergent, agrochemical, and specialty chemical industries seeking reliable raw material for sulfonation reactions and emulsification processes.

Application

• Primary Surfactant Production: The predominant use is as the direct precursor for manufacturing Linear Alkylbenzene Sulfonate (LAS), a workhorse anionic surfactant in household and industrial detergents, cleaners, and soaps.
• Emulsifying & Wetting Agent: Serves as a powerful emulsifier and wetting agent in formulations for agrochemicals (pesticides, herbicides), textile processing aids, and leather auxiliaries.
• Catalyst & Chemical Intermediate: Utilized as an acid catalyst in various organic synthesis reactions and as a key intermediate for producing other sulfonated compounds and specialty chemicals.
• Industrial Cleaners & Degreasers: A critical component in heavy-duty industrial and institutional (I&I) cleaning formulations, including metal degreasers and hard surface cleaners, due to its excellent grease-cutting properties.
• Personal Care & Cosmetic Auxiliaries: Used in the synthesis of mild surfactants for certain personal care products, following appropriate purification and neutralization steps.

Basic Information

Product Name	Dodecylbenzenesulphonic Acid
CAS No.	27176-87-0
Molecular Formula	C18H30O3S
Molecular Weight	326.50 g/mol
Synonyms	Dodecylbenzenesulfonic Acid; Laurylbenzenesulfonic Acid; DDBSA; n-Dodecylbenzenesulfonic Acid; Linear Alkylbenzene Sulfonic Acid (LABSA); Benzenesulfonic acid, dodecyl-; 1-Dodecylbenzenesulfonic acid; Lauryl benzene sulfonic acid
EINECS	248-289-4

Quality Control

Our Dodecylbenzenesulphonic Acid is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for active matter content, free oil, and sulfuric acid levels, guaranteeing consistency and performance in downstream applications. A comprehensive Certificate of Analysis (COA) is provided with every shipment, detailing all critical quality parameters.

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. Recommended storage temperature is between 15°C and 25°C. The product is a strong acid/organic solvent; ensure containers are clearly labeled and handling procedures for corrosive materials are followed.

Specification

Item	Specification
Appearance	Brown viscous liquid
Identification (IR)	Conforms
Active Matter (Assay)	96.0% min
Free Oil Content	1.5% max
Sulfuric Acid (as H2SO4)	1.5% max
Color (5% in Methanol)	Klett 100 max

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