Description

Sodium 1-Methyl 9-Sulphooctadecanoate is a high-purity anionic surfactant derived from a branched-chain fatty acid. This compound is valued for its excellent emulsifying, wetting, and dispersing properties in demanding formulations. It is primarily utilized in the production of industrial and institutional cleaning agents, textile processing aids, and specialized emulsion systems where robust performance under varied conditions is required.

Application

• Industrial & Institutional (I&I) Cleaners: Acts as a key surfactant in heavy-duty degreasers, floor cleaners, and metalworking fluids for superior soil removal and emulsification.
• Textile Processing: Serves as an effective wetting agent, scouring aid, and emulsifier in fiber pretreatment, dyeing, and finishing operations.
• Emulsion Polymerization: Functions as a critical emulsifier and stabilizer in the synthesis of synthetic rubbers, latex paints, and acrylic polymers.
• Leather Processing: Used in fatliquoring and dyeing processes to improve the penetration and distribution of oils and dyes.
• Agricultural Formulations: Employed as an adjuvant in pesticide and herbicide formulations to enhance spreading and adhesion on plant surfaces.
• Oilfield Chemicals: Utilized in drilling muds and production chemicals as an emulsifier and viscosity modifier.

Basic Information

Product Name	Sodium 1-Methyl 9-Sulphooctadecanoate
CAS No.	65151-73-7
Molecular Formula	C₁₉H₃₇NaO₅S
Molecular Weight	400.55 g/mol
Synonyms	1-Methyl-9-sulfonatooctadecanoic acid sodium salt; Sodium 1-methyl-9-sulfonatostearate; 9-Sulfo-10-methyloctadecanoic acid sodium salt; Methyl-branched sodium sulfostearate; Iso-C19 Sulfonate; Sulfonated isostearic acid sodium salt; Anionic branched-chain surfactant C19
EINECS	Contact for details

Quality Control

Our Sodium 1-Methyl 9-Sulphooctadecanoate is manufactured under a stringent quality management system. Each batch is tested to ensure consistent chemical identity, purity, and performance characteristics. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with every shipment to guarantee supply reliability and product consistency for your critical processes.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening 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 to structure
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfate Ash	20.0 - 25.0%
pH (10% solution)	7.0 - 9.5

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