Description

2-Diphenylphosphinoethyl-Functionalized Silica Gel is a high-performance, organically modified silica support material where a diphenylphosphinoethyl ligand is covalently attached to a silica gel matrix. This product matters because it combines the robust mechanical and thermal stability of silica with the versatile coordination chemistry of a phosphine ligand, enabling its use as a heterogeneous catalyst or scavenger support. It is primarily needed by researchers and process chemists in the pharmaceutical, fine chemical, and petrochemical industries for applications in catalysis, metal scavenging, and specialized separation processes.

Application

• Heterogeneous Catalyst Support: For immobilizing transition metal complexes (e.g., Pd, Rh, Pt) in hydrogenation, cross-coupling, and hydroformylation reactions.
• Metal Scavenging/Removal: Efficiently removes residual heavy metal catalysts from reaction streams in pharmaceutical API synthesis to meet purity specifications.
• Solid-Phase Synthesis: Acts as a functionalized solid support for the synthesis of complex molecules and libraries in combinatorial chemistry.
• Ligand for Supported Catalysis: The immobilized phosphine can act directly as a ligand for metals, facilitating catalyst recovery and reuse.
• Specialized Chromatography: Used in preparative chromatography for the separation of metal-containing compounds or phosphine-sensitive molecules.
• Environmental Remediation: Potential application in the selective capture and recovery of precious metals from industrial waste streams.

Basic Information

Product Name	2-Diphenylphosphinoethyl-Functionalized Silica Gel
CAS No.	1173020-99-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Silica gel, 2-diphenylphosphinoethyl-functionalized; Diphenyl(2-(triethoxysilyl)ethyl)phosphine silica gel bound; Phosphinoethyl-functionalized silica; PPh2-Et-SiO2; Silica-supported diphenylphosphinoethane; Heterogeneous phosphine ligand support; 2-(Diphenylphosphino)ethyltriethoxysilane grafted silica; Organophosphine-modified silica gel
EINECS	Contact for details

Quality Control

Our 2-Diphenylphosphinoethyl-Functionalized Silica Gel undergoes rigorous quality testing to ensure batch-to-batch consistency and performance reliability for catalytic applications. Key parameters monitored include phosphorous loading, surface area, pore volume, and particle size distribution. A Certificate of Analysis (COA) detailing these specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at room temperature (15-25°C) in a cool, dry, and well-ventilated area. Due to its sensitivity to oxidation and moisture, containers should be sealed immediately after use to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white free-flowing powder
Phosphorous Loading	0.5 - 1.2 mmol/g (Typical)
Surface Area (BET)	300 - 600 m²/g
Particle Size	40 - 75 μm (or as specified)
Pore Volume	0.7 - 1.2 cm³/g
Identification (IR)	Conforms to structure

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