Description

Phosphoric Acid, Octadecyl Ester is a high-purity organophosphorus compound, also known as stearyl phosphate, valued for its excellent surfactant and anti-corrosion properties. This chemical serves as a critical performance additive, enhancing product stability and functionality in demanding industrial formulations. It is essential for manufacturers in the lubricant, polymer, and personal care industries seeking reliable, high-quality raw materials.

Application

• As an anti-corrosion additive and extreme pressure (EP) agent in industrial lubricants and metalworking fluids.
• As an emulsifier and stabilizer in the production of polymers and specialty plastics.
• As a key ingredient in personal care formulations, such as creams and lotions, for its emollient and conditioning effects.
• As a surface modifier and processing aid in pigment and filler dispersion for coatings and inks.
• As a lubricity improver in synthetic and semi-synthetic lubricant base stocks.
• In textile auxiliaries as a softening and anti-static agent.

Basic Information

Product Name	Phosphoric Acid, Octadecyl Ester
CAS No.	39471-52-8
Molecular Formula	C18H39O4P
Molecular Weight	350.47 g/mol
Synonyms	Stearyl phosphate; Octadecyl phosphate; Phosphoric acid monoocadecyl ester; Mono-stearyl phosphate; n-Octadecyl dihydrogen phosphate; Octadecanol phosphate; Octadecyl dihydrogen phosphate; Stearic alcohol phosphate
EINECS	254-489-0

Quality Control

Our Phosphoric Acid, Octadecyl Ester is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance. Certificates of Analysis (COA) documenting key specifications 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, well-ventilated area away from strong bases and incompatible materials such as strong oxidizing agents. Recommended storage temperature is between 15°C and 25°C. The product is stable under these conditions for extended periods.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0 %
Melting Point	55 - 65 °C
Acid Value	Contact for details
Heavy Metals (as Pb)	< 10 ppm
Loss on Drying	< 1.0 %

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