How can Diphenylphosphine be distinguished from other phenyl-substituted phosphines in industrial use?

Diphenylphosphine is identified by the presence of a phosphorus–hydrogen bond and two phenyl groups, which differentiates it from tertiary phosphines or oxidized phosphorus derivatives. Industrial identification typically relies on CAS alignment, molecular structure confirmation, and routine analytical data consistency.

Is Diphenylphosphine typically applied as a final formulation component or as a reaction intermediate?

It is commonly used as a reaction intermediate in organophosphorus synthesis, where it participates in further substitution or coordination reactions rather than serving as a finished formulation ingredient.

Diphenylphosphine CAS 829-85-6

Diphenylphosphine is an organophosphorus compound commonly used as a reactive phosphine intermediate in organophosphorus synthesis and related catalytic systems. It functions through the nucleophilic and reductive characteristics of the phosphorus–hydrogen bond, enabling downstream formation of substituted phosphines and coordination compounds. In industrial chemical processes, Diphenylphosphine is typically applied in controlled synthesis routes where aryl phosphine derivatives, ligand precursors, and phosphorus-containing intermediates are required for further formulation or reaction integration. Toward industrial procurement, the material is available with competitive factory pricing, customized specifications, and supporting documentation including MSDS, TDS, COA, offered for bulk supply.

CAS: 829-85-6
Synonyms: Diphenylphosphane, Phenylphosphine dimer, Bisphenylphosphine, Diphenyl phosphine
Einecs: 212-593-4
Molecular Formula: C12H11P
Grade: Industrial grade 99%
Package: 200kg iron drum or 50kg plastic drum packing

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Product Description

Product Name:	Diphenylphosphorus
Alias:	diphenyl phosphorus; dimethylphosphorus
Case No.:	829-85-6
Molecular formula:	C₁₂H₁₁P
Molecular weight:	186.19

Physical and chemical properties
Appearance and properties: colorless liquid
Vapor pressure: 2 mmHg (110°C)

Density: 1.07 g/mL (25 °C) (lit.).
Boiling point: 280°C(lit.)

Flash point: -18°C (Hexane)

Refractive index(n20/D): 1.625(lit.)

Storage conditions: 2-8°C
Sensitivity: Air sensitive

Main uses: Secondary phosphine hydrogen used to prepare diphenyl tertiary phosphine hydrogen by alkylation reaction; Preparation of lithium salt; Preparation of potassium salt with tert-butyl alcohol potassium in situ; Preparation of phosphine hydroxide.

Hazard Description
Hazard Code: F, Xi
Hazard Class: 17-36/37/38

Precautions
Diphenyphosphine is a flammable and irritating substance that can spontaneously combust in the air

FAQ - Technical & Supply Chain

Q:
How can Diphenylphosphine be distinguished from other phenyl-substituted phosphines in industrial use?

A: Diphenylphosphine is identified by the presence of a phosphorus–hydrogen bond and two phenyl groups, which differentiates it from tertiary phosphines or oxidized phosphorus derivatives. Industrial identification typically relies on CAS alignment, molecular structure confirmation, and routine analytical data consistency.
Q:
Is Diphenylphosphine typically applied as a final formulation component or as a reaction intermediate?

A: It is commonly used as a reaction intermediate in organophosphorus synthesis, where it participates in further substitution or coordination reactions rather than serving as a finished formulation ingredient.

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Catalyst Ligand Organophosphorus Intermediate Organophosphorus Reagent Phosphine Ligand Intermediate Phosphine Reagent Secondary Phosphine

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