Description

Diisoctyl Acid Phosphate is an organophosphorus compound widely utilized as a versatile intermediate and functional additive. Its value lies in its dual functionality, acting as an effective acid catalyst, metal extractant, and corrosion inhibitor. This chemical is essential for manufacturers in the lubricant, plasticizer, and specialty chemical industries seeking performance additives and synthesis intermediates.

Application

• Lubricant & Grease Additive: Functions as an extreme pressure (EP) agent and anti-wear additive in metalworking fluids and industrial lubricants.
• Plasticizer & Stabilizer Intermediate: Serves as a key raw material in the synthesis of various phosphate ester plasticizers and stabilizers for polymers.
• Corrosion Inhibitor: Used in formulations for fuel additives, hydraulic fluids, and metal treatment processes to protect against rust and oxidation.
• Solvent Extraction Agent: Employed in hydrometallurgy for the selective extraction and separation of metal ions, such as rare earth elements.
• Acid Catalyst: Acts as a catalyst in organic synthesis reactions, including esterification and polymerization processes.
• Surfactant & Emulsifier Precursor: Used to produce specialty surfactants for industrial and agrochemical applications.

Basic Information

Product Name	Diisoctyl Acid Phosphate
CAS No.	27215-10-7
Molecular Formula	C16H35O4P
Molecular Weight	322.42 g/mol
Synonyms	Diisooctyl Hydrogen Phosphate; Di(2-ethylhexyl) Hydrogen Phosphate; Bis(2-ethylhexyl) Hydrogen Phosphate; Dioctyl Acid Phosphate; O,O-Diisooctyl Hydrogen Phosphorothioate (related); Phosphoric Acid, Diisooctyl Ester; HDEHP (common abbreviation); D2EHPA (common trade name variant)
EINECS	248-336-6

Quality Control

Our Diisoctyl Acid Phosphate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity and performance. A Certificate of Analysis (COA) detailing key parameters such as assay, acidity, and moisture content is provided with every shipment to guarantee traceability and compliance with your specifications.

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 product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0%
Acid Value	Contact for details
Moisture (KF)	≤ 0.5%
Specific Gravity (20°C)	~0.97
Viscosity (25°C)	Contact for details

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