Description

Octylphenyl Acid Phosphate is an organophosphorus compound widely used as an intermediate and functional additive. Its unique structure, combining an alkylphenyl group with a phosphate ester, provides excellent surfactant and anti-wear properties. This product is essential for formulators and manufacturers in the lubricant, metalworking, and polymer industries seeking to enhance performance and stability.

Application

• Lubricant & Grease Additive: Functions as an effective anti-wear agent, extreme pressure (EP) additive, and corrosion inhibitor in industrial oils and greases.
• Metalworking Fluids: Imparts lubricity and surface activity in cutting, grinding, and drawing fluids to improve tool life and finish.
• Polymer Stabilizer & Plasticizer Intermediate: Acts as a secondary stabilizer and processing aid in PVC and other polymer systems.
• Surfactant & Emulsifier: Serves as a key component in specialized formulations requiring wetting, dispersing, or emulsifying action.
• Flame Retardant Synergist: Used in combination with other flame retardants to enhance efficacy in plastics and textiles.
• Hydraulic & Fire-Resistant Fluid Formulation: A valuable additive for improving the lubricity and stability of specialty hydraulic fluids.

Basic Information

Product Name	Octylphenyl Acid Phosphate
CAS No.	64051-36-1
Molecular Formula	C14H23O4P (Typical for mono-ester)
Molecular Weight	286.30 g/mol (Approx.)
Synonyms	Phosphoric Acid Mono(octylphenyl) Ester; Mono(octylphenyl) Phosphate; Octylphenol Phosphate Ester; Octyl Phenyl Acid Phosphate; OPPA; p-Octylphenyl Acid Phosphate; Phenol, p-octyl-, phosphate; Acid Phosphoric Ester of Octylphenol
EINECS	Contact for details

Quality Control

Our Octylphenyl Acid Phosphate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, acidity, and performance characteristics. A comprehensive Certificate of Analysis (COA) detailing assay, acid value, and other critical parameters is provided to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and a strong acid/organic solvent; keep the container tightly sealed when not in use and separate from bases and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Assay (by Titration)	≥ 95.0%
Acid Value (mg KOH/g)	190 - 210
Moisture (KF)	≤ 0.5%
Identification (IR)	Conforms

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