Description

Diisooctylphosphinic Acid is a high-purity organophosphorus compound valued for its strong acidic properties and excellent solubility in organic matrices. This chemical serves as a highly effective extractant and catalyst in demanding industrial processes, offering superior performance and stability. It is primarily utilized by manufacturers in the chemical synthesis, metal extraction, and polymer stabilization sectors who require a reliable and efficient acidic reagent.

Application

• Solvent Extraction Agent: A key extractant for the separation and purification of rare earth elements and transition metals from aqueous solutions.
• Catalyst & Intermediate: Used as an acid catalyst in organic synthesis and as a crucial intermediate for producing other organophosphorus derivatives.
• Polymer Additive: Functions as a stabilizer and acid scavenger in polymer formulations to enhance thermal and oxidative stability.
• Surface Treatment: Employed in metal surface treatment and corrosion inhibition formulations.
• Flame Retardant Synergist: Acts as a component in flame-retardant systems for plastics and textiles.
• Lubricant & Fuel Additive: Used as an anti-wear and extreme pressure additive in advanced lubricants and fuel formulations.

Basic Information

Product Name	Diisooctylphosphinic Acid
CAS No.	83411-71-6
Molecular Formula	C₁₆H₃₅O₂P
Molecular Weight	290.43 g/mol
Synonyms	Bis(6-methylheptyl)phosphinic acid; Diisooctylphosphinic acid; DIOPA; Phosphinic acid, bis(6-methylheptyl)-; Bis(6-methylheptyl)phosphinous acid; Isooctylphosphinic acid; (6-Methylheptyl)phosphinic acid (dimer form); P,P-Bis(6-methylheptyl)phosphinic acid
EINECS	Contact for details

Quality Control

Our Diisooctylphosphinic Acid is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment 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 incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 15-25°C. Due to its nature as a strong acid/organic solvent, ensure containers are kept upright and sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.89 - 0.93
Refractive Index (20°C)	1.450 - 1.460

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