Description

Dimethyl Octadecylphosphonate is a high-purity organophosphorus compound, also known as dimethyl octadecyl phosphonate. This specialty chemical serves as a versatile intermediate and functional additive, prized for its unique combination of a long alkyl chain and a phosphonate ester group. It is essential for manufacturers seeking to impart specific surface-active, lubricating, or flame-retardant properties to their formulations. Key industries that utilize this compound include polymer production, lubricant and grease manufacturing, and the synthesis of advanced surfactants and textile auxiliaries.

Application

• Polymer Additive: Acts as a processing aid, internal lubricant, and anti-static agent in plastics and synthetic fibers.
• Lubricant & Grease Formulation: Serves as an extreme pressure (EP) additive and friction modifier in synthetic lubricants and high-performance greases.
• Surfactant Intermediate: A key precursor for the synthesis of cationic and amphoteric surfactants used in personal care and industrial cleaning products.
• Flame Retardant Synergist: Used in combination with other flame retardants to enhance efficacy in polymeric materials like polyurethane foams.
• Textile Auxiliary: Imparts softness, water repellency, and anti-soiling properties to fabrics and non-wovens.
• Corrosion Inhibitor: Employed in metalworking fluids and fuel additives to protect ferrous and non-ferrous metals.
• Extraction Solvent: Utilized in specialized solvent extraction processes for metal ions in hydrometallurgy.

Basic Information

Product Name	Dimethyl Octadecylphosphonate
CAS No.	33123-31-8
Molecular Formula	C₂₀H₄₃O₃P
Molecular Weight	362.53 g/mol
Synonyms	Dimethyl Octadecyl Phosphonate; Octadecylphosphonic Acid Dimethyl Ester; Dimethyl Stearylphosphonate; Stearylphosphonic Acid Dimethyl Ester; Phosphonic Acid, Octadecyl-, Dimethyl Ester; DMOP; n-Octadecyldimethylphosphonate; NSC 163082
EINECS	Contact for details

Quality Control

Our Dimethyl Octadecylphosphonate is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets precise specifications and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and key physical parameters is provided with each shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acid Value	≤ 1.0 mg KOH/g

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