Description

Sodium Dodecyl Sulfate CAS NO 151-21-3 is a high-purity anionic surfactant renowned for its exceptional foaming, emulsifying, and wetting properties. This versatile compound is a critical raw material for ensuring product performance and process efficiency across numerous industrial and consumer sectors. It is essential for manufacturers in the personal care, pharmaceutical, biotechnology, and industrial cleaning industries seeking reliable, high-quality ingredients.

Application

• Personal Care & Cosmetics: Primary foaming and cleansing agent in shampoos, body washes, toothpastes, and facial cleansers.
• Pharmaceuticals: Used as an emulsifying agent in creams and ointments, and as a solubilizing agent for hydrophobic drugs.
• Life Sciences & Biotechnology: Key component in nucleic acid extraction kits and protein denaturation for SDS-PAGE (Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis).
• Industrial & Institutional Cleaning: Effective surfactant in heavy-duty detergents, degreasers, and car wash formulations.
• Textile & Leather Processing: Acts as a wetting agent, leveling agent, and emulsifier in various processing stages.
• Agrochemicals: Used as an adjuvant in pesticide and herbicide formulations to enhance spreading and adherence.
• Polymer & Emulsion Polymerization: Serves as an emulsifier in the production of synthetic rubber, latex, and other polymers.

Basic Information

Product Name	Sodium Dodecyl Sulfate
CAS No.	151-21-3
Molecular Formula	C12H25NaO4S
Molecular Weight	288.38 g/mol
Synonyms	SDS; Sodium Lauryl Sulfate (SLS); Dodecyl Sodium Sulfate; Lauryl Sodium Sulfate; Sulfuric Acid Monododecyl Ester Sodium Salt; Sodium Monododecyl Sulfate; Aquarex ME; Avirol 118
EINECS	205-788-1

Quality Control

Our Sodium Dodecyl Sulfate is manufactured under a strict quality management system. We offer various grades, including high-purity grades suitable for pharmaceutical (USP/EP) and life science applications, as well as cost-effective technical grades. Every batch undergoes comprehensive analytical testing to ensure consistent purity, performance, and compliance with relevant specifications. Certificates of Analysis (COA) are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent caking and absorption of moisture.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms
Assay (by Titration)	≥ 85.0% - 102.0% (on dried basis)
pH (10% Solution)	6.0 - 9.0
Loss on Drying	≤ 5.0 %
Residue on Ignition (Sulfated Ash)	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Ethanol & Isopropanol (GC)	≤ 1.0 % (combined)

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