Description

p-Decylbenzenesulphonic Acid is a high-purity, long-chain alkylbenzene sulfonic acid widely used as a key intermediate and surfactant precursor. This compound is valued for its excellent detergency, emulsifying properties, and ability to act as a catalyst or acid source in specialized organic syntheses. It is essential for manufacturers in the detergent, agrochemical, and specialty chemical industries seeking reliable performance in formulations.

Application

• Detergent & Surfactant Manufacturing: A primary raw material for producing high-performance anionic surfactants, particularly linear alkylbenzene sulfonates (LAS) used in industrial and household cleaners.
• Catalysis & Organic Synthesis: Serves as an efficient acid catalyst in esterification, alkylation, and other organic reactions where a strong, recoverable organic acid is required.
• Emulsifier & Dispersant: Used in the formulation of agrochemicals (pesticides, herbicides) and coatings to stabilize emulsions and improve dispersion of active ingredients.
• Metal Processing & Plating: Employed in electroplating baths and metal cleaning formulations for its surface-active and wetting properties.
• Textile & Leather Processing: Functions as a wetting agent, dye leveling agent, and auxiliary in various textile and leather treatment processes.
• Oilfield Chemicals: Utilized in drilling muds and enhanced oil recovery formulations as a surfactant to modify interfacial tension.

Basic Information

Product Name	p-Decylbenzenesulphonic Acid
CAS No.	140-60-3
Molecular Formula	C16H26O3S
Molecular Weight	298.44 g/mol
Synonyms	4-Decylbenzenesulfonic Acid; Decylbenzenesulfonic Acid; p-n-Decylbenzenesulfonic Acid; 1-Decyl-4-sulfobenzene; Benzenesulfonic acid, decyl-; DBSA (Decylbenzene Sulfonic Acid); 4-(Decyl)benzenesulfonic acid; Linear Decyl Benzene Sulfonic Acid
EINECS	205-427-1

Quality Control

Our p-Decylbenzenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, impurity profile, and physical property determination, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and other critical parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong bases and oxidizing agents. Due to its nature as a strong acid/organic solvent, containers must be kept tightly sealed to prevent moisture absorption and degradation. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 96.0%
Color (APHA)	≤ 100
Water Content	≤ 1.0%
Free Sulfuric Acid	≤ 1.5%
Unsulfonated Matter	≤ 2.0%

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