Description

Sodium 2-Sulphonatoethyl Hydrogen Stearate is a high-purity anionic surfactant and emulsifier, valued for its excellent wetting, dispersing, and stabilizing properties in demanding formulations. Its unique molecular structure, combining a long-chain fatty acid with a sulfonate group, provides superior performance in aqueous systems where compatibility and stability are critical. This compound is essential for manufacturers in the personal care, textile, and industrial cleaning sectors seeking reliable and effective surface-active agents.

Application

• Personal Care & Cosmetics: Acts as a primary emulsifier and stabilizer in creams, lotions, and hair care products, providing a smooth texture and enhanced skin feel.
• Textile Processing: Used as a wetting agent, lubricant, and softener in fiber processing, dyeing, and finishing operations to improve fabric quality.
• Industrial & Institutional (I&I) Cleaners: Serves as a key surfactant in heavy-duty degreasers, metal cleaners, and floor care formulations for superior detergency.
• Emulsion Polymerization: Functions as an effective emulsifier and particle stabilizer in the production of synthetic latexes, acrylics, and styrene-butadiene rubber (SBR).
• Agricultural Formulations: Employed as a dispersant and wetting agent in pesticide and herbicide concentrates to improve sprayability and efficacy.
• Leather Processing: Used in fatliquoring and dyeing processes to ensure even penetration and soft, supple leather.

Basic Information

Product Name	Sodium 2-Sulphonatoethyl Hydrogen Stearate
CAS No.	29703-73-9
Molecular Formula	C₂₀H₃₉NaO₅S
Molecular Weight	406.57 g/mol
Synonyms	Sodium 2-Sulfoethyl Stearate; 2-Sulfoethyl Stearate Sodium Salt; Stearic Acid 2-Sulfoethyl Ester Sodium Salt; Sodium Stearoyl Isethionate (related compound); Sulfoethyl Stearate Sodium Salt; Ethyl Stearate Sulfonate Sodium Salt; AES (context-specific abbreviation); Anionic Stearate Surfactant
EINECS	Contact for details

Quality Control

Our Sodium 2-Sulphonatoethyl Hydrogen Stearate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, composition, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, moisture content, and impurity profiles are available upon request. We are committed to supplying material that meets the consistent quality standards required for industrial and specialty chemical applications.

Storage

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

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0 %
Moisture Content	≤ 3.0 %
pH (10% 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.