Description

Octadecanoic Acid, 9(Or 10)-(Sulfooxy)-, Ammonium Sodium Salt is a specialized anionic surfactant derived from stearic acid, valued for its unique sulfated structure and dual cationic counterions. This compound is engineered to provide excellent emulsifying, wetting, and dispersing properties in challenging formulations. It is primarily sought after by manufacturers in the personal care, textile processing, and industrial cleaning sectors for creating high-performance, stable products.

Application

• Personal Care & Cosmetics: Acts as a primary emulsifier and surfactant in creams, lotions, and hair care products, offering mildness and stable emulsion formation.
• Textile Auxiliaries: Used as a wetting agent, emulsifier, and softener in textile processing and finishing baths.
• Industrial & Institutional (I&I) Cleaners: Serves as a key component in heavy-duty degreasers and emulsifiable cleaners for industrial equipment.
• Metalworking Fluids: Functions as an emulsifier and corrosion inhibitor in soluble oils and synthetic coolants.
• Leather Processing: Employed in fatliquoring and dyeing processes to improve softness and dye penetration.
• Agricultural Adjuvants: Enhances the spreading and sticking properties of pesticide and herbicide formulations.
• Paint & Coating Additives: Aids in pigment dispersion and stabilization in water-based coating systems.
• Research & Development: Used as a biochemical intermediate or a model sulfated surfactant in academic and industrial R&D.

Basic Information

Product Name	Octadecanoic Acid, 9(Or 10)-(Sulfooxy)-, Ammonium Sodium Salt
CAS No.	111001-43-5
Molecular Formula	C₁₈H₃₈NO₆S • Na (Contact for details)
Molecular Weight	Contact for details
Synonyms	Ammonium Sodium Sulfostearate
Sulfated Stearic Acid, Ammonium Sodium Salt
9(10)-Sulfoxy Stearic Acid Ammonium Sodium Salt
Sodium Ammonium Stearyl Sulfate
Stearic Acid, Sulfated, Ammonium Sodium Salt
Octadecanoic Acid, 9(or 10)-Sulfooxy-, Ammonium Sodium Salt
CAS 111001-43-5
EINECS	Contact for details

Quality Control

Our Octadecanoic Acid, 9(Or 10)-(Sulfooxy)-, Ammonium Sodium Salt is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, moisture content, and ionic balance are available upon request to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	White to off-white powder or paste
Identification (IR)	Conforms to structure
Assay (Active Matter)	Min. 90%
Moisture Content	Max. 5.0%
pH (10% Solution)	6.0 - 8.5
Heavy Metals (as Pb)	Max. 20 ppm
Sulfate Ash	Contact for details

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