Description

Phosphoric Acid Hydrogen Decyl=Octyl Ester is a specialized organophosphorus compound that functions as an effective acid catalyst and intermediate. This product matters for its unique combination of organic solubility and acidic properties, enabling its use in formulations where traditional mineral acids are incompatible. Industries requiring controlled acid catalysis or surface modification, such as polymer synthesis and lubricant additive manufacturing, will find this ester particularly valuable.

Application

• Acid catalyst in esterification and polymerization reactions.
• Intermediate for the synthesis of specialized surfactants and emulsifiers.
• Additive component in lubricants and metalworking fluids for corrosion inhibition and extreme pressure performance.
• Surface treatment agent for improving adhesion and wetting properties.
• Stabilizer and processing aid in the production of plastics and resins.
• Key raw material in the manufacture of flame retardants.

Basic Information

Product Name	Phosphoric Acid Hydrogen Decyl=Octyl Ester
CAS No.	61792-40-3
Molecular Formula	C18H39O4P
Molecular Weight	350.47 g/mol
Synonyms	Decyl octyl hydrogen phosphate; Di(decyl/octyl) hydrogen phosphate; Mixed decyl octyl phosphate; Phosphoric acid, di-C8-10-alkyl esters; Dioctyldecyl phosphate; C8-C10 Alkyl phosphate; Acid phosphate ester (C8-10); APE (C8-10)
EINECS	263-194-0

Quality Control

Our Phosphoric Acid Hydrogen Decyl=Octyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, acidity, and compositional profile. Certificates of Analysis (COA) detailing key specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong bases, oxidizing agents, and heat sources. Due to its acidic nature and sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term stability. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Acid Value)	Contact for details
Water Content (KF)	≤ 0.5%
Free Phosphoric Acid	≤ 1.0%
Specific Gravity (20°C)	Contact for details
Viscosity (25°C)	Contact for details

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