Description

Bis(2,4,4-Trimethylpentyl)Phosphinic Acid is a high-purity organophosphorus extractant widely used in hydrometallurgy. Its primary value lies in its exceptional selectivity and efficiency for separating and purifying valuable metal ions from complex aqueous solutions. This product is essential for industries involved in the recovery of strategic and precious metals, including cobalt, nickel, and rare earth elements.

Application

• Solvent Extraction in Hydrometallurgy: Selective extraction and separation of cobalt from nickel in sulfate or chloride leach solutions.
• Rare Earth Element (REE) Processing: Purification and separation of individual rare earth elements, such as neodymium and praseodymium.
• Metal Recovery from Secondary Sources: Recovery of valuable metals from electronic waste (e-waste), spent catalysts, and industrial by-products.
• Catalyst Manufacturing: Used as a precursor or ligand in the synthesis of specialized catalysts for chemical reactions.
• Pharmaceutical Intermediates: Serves as a key intermediate in the synthesis of certain organophosphorus compounds with biological activity.
• Flame Retardant Synergist: Acts as a component in advanced flame retardant formulations for polymers and textiles.

Basic Information

Product Name	Bis(2,4,4-Trimethylpentyl)Phosphinic Acid
CAS No.	27661-42-3
Molecular Formula	C16H35O2P
Molecular Weight	290.42 g/mol
Synonyms	Cyanex 272; Di(2,4,4-trimethylpentyl)phosphinic acid; Bis(2,4,4-trimethylpentyl)phosphinic acid; Phosphinic acid, bis(2,4,4-trimethylpentyl)-; 2,4,4-Trimethylpentylphosphinic acid dimer; DTMPPA; Organophosphorus extractant 272
EINECS	248-574-7

Quality Control

Our production of Bis(2,4,4-Trimethylpentyl)Phosphinic Acid adheres to stringent quality management protocols. Every batch is analyzed to ensure high purity and consistent performance as a metal extractant. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee reliable and reproducible results in your extraction processes.

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 between 15°C and 25°C. Due to its nature as a strong acid/organic solvent, ensure containers are clearly labeled and handling procedures are followed.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 93.0%
Water Content (KF)	≤ 0.2%
Density (20°C)	0.92 - 0.95 g/mL
Viscosity (25°C)	Contact for details
Flash Point	> 150 °C

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