Description

4-Undecylbenzenesulfonic Acid Sodium Salt is a high-purity anionic surfactant and detergent intermediate. This compound is valued for its excellent emulsifying, wetting, and foaming properties, making it a critical component in advanced formulations. It is primarily required by manufacturers in the detergent, agrochemical, and specialty chemical industries for producing high-performance cleaning agents and emulsifiers.

Application

• Detergent & Cleaning Formulations: A key surfactant in industrial and institutional cleaners, dishwashing liquids, and hard surface cleaners.
• Emulsifier for Agrochemicals: Used in the formulation of pesticides and herbicides to improve stability and dispersion.
• Textile Processing Aid: Acts as a wetting agent and detergent in scouring and dyeing processes.
• Industrial Emulsification: Serves as an emulsifier in the production of polymers, resins, and other chemical intermediates.
• Enhanced Oil Recovery (EOR): Investigated for use in chemical flooding formulations to reduce interfacial tension.
• Personal Care Products: Used as a foaming and cleansing agent in select cosmetic and personal wash formulations.

Basic Information

Product Name	4-Undecylbenzenesulfonic Acid Sodium Salt
CAS No.	20466-34-6
Molecular Formula	C17H27NaO3S
Molecular Weight	334.45 g/mol
Synonyms	Sodium 4-undecylbenzenesulfonate; Sodium undecylbenzenesulfonate; p-Undecylbenzenesulfonic acid sodium salt; Benzenesulfonic acid, 4-undecyl-, sodium salt; LAS (Linear Alkylbenzene Sulfonate) derivative; Sodium C11 alkylbenzene sulfonate; Surfactant C11; 4-n-Undecylbenzenesulfonic Acid Sodium Salt
EINECS	243-843-4

Quality Control

Our 4-Undecylbenzenesulfonic Acid Sodium Salt is manufactured under a stringent quality management system. Each batch is tested to ensure it meets precise specifications for purity, active content, and performance characteristics. A comprehensive Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms
Assay (Active Matter)	≥ 95.0 %
Moisture Content	≤ 3.0 %
pH (1% Solution)	7.0 - 9.0
Sodium Sulfate	≤ 2.0 %
Unsulfonated Matter	≤ 1.5 %

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