Description

Phosphinic Acid,P,p-Bis(2-Ethylhexyl)- CAS NO 13525-99-0 is a specialized organophosphorus compound, functioning as a high-performance extractant and metal complexing agent. Its primary value lies in its exceptional selectivity for separating and purifying specific metal ions from complex aqueous solutions. This chemical is essential for industries requiring high-purity metals, particularly in advanced material synthesis and resource recovery processes.

Application

• Solvent Extraction in Hydrometallurgy: Key reagent for the selective extraction and separation of valuable metals like cobalt, nickel, and rare earth elements from leach solutions.
• Metal Ion Scavenging & Purification: Used in chemical synthesis and catalyst production to remove trace metal impurities, ensuring product quality and catalytic activity.
• Nuclear Fuel Reprocessing: Employed in the PUREX and related processes for the separation of actinides and lanthanides.
• Analytical Chemistry: Serves as a chelating agent in sample preparation for atomic absorption spectroscopy (AAS) and inductively coupled plasma (ICP) techniques.
• Wastewater Treatment: Effective for the recovery of heavy metals from industrial effluents, aiding in environmental compliance and resource recycling.
• Catalyst Ligand Precursor: Intermediate in the synthesis of specialized ligands for homogeneous catalysis.
• Polymer Additive: Acts as a stabilizer or complexing agent in specific polymer formulations to enhance material properties.

Basic Information

Product Name	Phosphinic Acid,P,p-Bis(2-Ethylhexyl)-
CAS No.	13525-99-0
Molecular Formula	C16H35O2P
Molecular Weight	290.42 g/mol
Synonyms	Bis(2-ethylhexyl)phosphinic Acid; Di(2-ethylhexyl)phosphinic Acid; P,P-Bis(2-ethylhexyl)phosphinic Acid; HDEHP (common abbreviation); DEHPA (Di-2-ethylhexyl phosphoric acid - related compound, often used interchangeably in industry context); 2-Ethylhexyl phosphonic acid, mono-2-ethylhexyl ester; Organophosphorus extractant EHPNA; PC-88A (a commercial trade name formulation).
EINECS	Contact for details

Quality Control

Our production of Phosphinic Acid,P,p-Bis(2-Ethylhexyl)- adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability for critical separation processes. Each lot is analyzed to confirm key parameters such as purity, acid number, and metal content. A comprehensive Certificate of Analysis (COA) detailing assay results, physical properties, and impurity profiles is provided with every shipment.

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 is performed with appropriate personal protective equipment.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0%
Acid Value	Contact for details
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	~0.97
Refractive Index (n20D)	~1.445
Heavy Metals (as Pb)	< 10 ppm

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