Description

Ammonium Octadecyl Sulphate is a high-purity, long-chain anionic surfactant derived from stearyl alcohol. This compound is valued for its excellent emulsifying, dispersing, and wetting properties in both aqueous and non-aqueous systems. It serves as a critical performance additive in the formulation of industrial cleaners, textile auxiliaries, and personal care products, where consistent quality and reliable supply are paramount for manufacturers.

Application

• Industrial & Institutional (I&I) Cleaners: Acts as a primary surfactant and emulsifier in heavy-duty degreasers, floor cleaners, and metalworking fluids.
• Textile Processing: Used as a wetting agent, levelling agent, and softener in dyeing and finishing baths to ensure uniform color and fabric handle.
• Personal Care & Cosmetics: Functions as an emulsifier and cleansing agent in the formulation of creams, lotions, and hair care products.
• Agricultural Formulations: Employed as a dispersant and spreading agent in pesticide and herbicide concentrates to enhance coverage and efficacy.
• Leather Processing: Serves as a fatliquoring agent and emulsifier in tanning and finishing processes to improve leather softness and quality.
• Paper & Pulp Industry: Utilized as a deinking agent and dispersant in recycling processes and paper coating formulations.

Basic Information

Product Name	Ammonium Octadecyl Sulphate
CAS No.	4696-46-2
Molecular Formula	C₁₈H₃₉NO₄S
Molecular Weight	365.57 g/mol
Synonyms	Ammonium Stearyl Sulfate; Octadecyl Ammonium Sulfate; Stearyl Ammonium Sulfate; Ammonium Octadecyl Sulfate; AS-18; Sulfuric Acid, Octadecyl Ester, Ammonium Salt; Ammonium n-Octadecyl Sulfate; Ammonium Monooctadecyl Sulfate
EINECS	225-162-6

Quality Control

Our Ammonium Octadecyl Sulphate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, moisture content, and sulfate content to guarantee supply reliability and batch-to-batch consistency for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0 %
Moisture (KF)	≤ 3.0 %
pH (5% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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