Phosphoric Acid Octadecyl Ester CAS 39471-52-8 High-Purity Long-Chain Phosphate Surfactant

BLIT Chemical Phosphoric Acid, Octadecyl Ester (CAS 39471-52-8) is a high-purity, long-chain organic phosphate widely used across personal care, industrial emulsions, coatings, and lubrication systems. As a specialized manufacturer of phosphate surfactants, BLIT Chemical ensures consistent quality and excellent formulation performance.

This material is typically supplied as a white to off-white waxy solid with good dispersibility in water and strong solubility in most organic solvents. Its octadecyl (C18) hydrophobic chain combined with a phosphate functional group provides effective surface activity, controlled hydrophobicity, excellent wetting behavior, and strong emulsification capability.

BLIT CHEM can also manufacture phosphate esters with different carbon chains using fatty alcohols with different carbon chains according to customer requirements, and may also customize monophosphate esters and diephosphate esters according to customer requirements.

Due to its stability, mildness, and compatibility with cationic and nonionic emulsification systems, Phosphoric Acid, Octadecyl Ester is widely used to stabilize O/W and W/O emulsions, enhance conditioning, modify viscosity, and improve film-forming properties in both cosmetic and industrial applications.

BLIT CHEMICAL Phosphoric Acid Octadecyl Ester Specification

Phosphoric Acid, Octadecyl Ester Applications

What is Phosphoric Acid Octadecyl Ester used for?

Phosphoric Acid, Octadecyl Ester is a long-chain phosphate ester surfactant designed for applications requiring strong emulsification, wetting, and surface modification.

In fertilizer applications, it is an excellent fertilizer anti-caking agent, which is also the main market for BLIT Chemical in many countries.

Personal Care & Cosmetics

• Emulsifier for lotions, creams, and conditioning products
• Enhances spreadability and skin-feel
• Provides mildness and improved emulsion stability
• Useful in hair conditioners for improved deposition and softness

Industrial & Chemical Applications

• Emulsion stabilizer for paints and coatings
• Hydrophobic surface-treatment agent
• Pigment wetting and dispersion additive
• Lubricant and metalworking fluid additive
• Rheology modifier for complex emulsions

Why formulators choose Phosphoric Acid Octadecyl Ester

• Excellent compatibility with cationic and nonionic surfactants
• Strong affinity to metal, pigment, and polymer surfaces
• Stable under high temperature and various pH levels
• Low irritation profile, suitable for cosmetic systems

Storage & Handling

• Store in a cool, dry, well-ventilated location.
• Keep container sealed to avoid moisture absorption.
• Recommended storage temperature: 5–30 °C.
• Avoid direct heat or strong oxidizers.
• Shelf life: 12 months in original packaging.

Usage Guidelines

How to use Phosphoric Acid, Octadecyl Ester in formulations?

• Recommended dosage: 0.5% – 5%
• Add to the oil phase in cosmetic emulsions
• Can be heated until melted for hot-process systems
• Compatible with nonionic and cationic surfactants
• Ideal pH range for best performance: 2 – 7
• For coatings/industrial emulsions, may be added to either phase depending on system design

Packaging

• 25 kg bag
• 20 kg carton
• Custom packaging available upon request