Diphenylphosphine
Diphenylphosphine (CAS: 829-85-6), with the molecular formula (C6H5)2PH and a molecular weight of 186.19 g/mol, is a key organophosphorus compound. It is primarily recognised for its utility in chemical synthesis and catalysis. Its ability to form diphenylphosphide anions makes it a valuable precursor for creating novel phosphine ligands, Wittig-Horner reagents, and phosphonium salts, alongside serving as a source for phosphorus-centered radicals.
- IUPAC
- HPPh2,Ph2PH
- Synonyms
- HPPh2Ph2PH
Precursor for Phosphine Ligands
Deprotonation of diphenylphosphine yields the diphenylphosphide anion, which is a crucial intermediate for synthesising a wide array of sophisticated phosphine ligands used in homogeneous catalysis.
Synthesis of Wittig-Horner Reagents
This compound serves as a building block in the preparation of Wittig-Horner reagents, which are instrumental in carbon-carbon bond formation through olefination reactions.
Generation of Phosphonium Salts
Diphenylphosphine is employed in synthetic pathways leading to the formation of phosphonium salts, versatile compounds with applications ranging from phase-transfer catalysis to organic synthesis.
Source of Phosphorus Radicals
The compound can act as a source of phosphorus-centered radicals, enabling specific radical-mediated chemical transformations and synthetic strategies.
| Molecular weight | 186.19 |
|---|---|
| Linear formula | (C6H5)2PH |
| Assay | 98% |
| Boiling point | 280 °C(lit.) |
| Density | 1.07 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.625(lit.) |
| Vapour pressure | 2 mmHg (110 °C) |
| Application | Deprotonation of Ph2PH gives diphenylphosphide, used for synthesis of novel phosphine ligands, Wittig-Horner reagents, and phosphonium salts; source of phosphorus-centered radicals. |
Hazard statements
- H250Catches fire spontaneously if exposed to air
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P222Do not allow contact with air
- P231Handle under inert gas
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
- P422
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 110 °C / 230 °F |
| Transport (UN / ADR) | UN 2845 4.2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 17-36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Diphenylphosphine used for?
+
Diphenylphosphine is used as a precursor for synthesising novel phosphine ligands, Wittig-Horner reagents, and phosphonium salts. It also serves as a source of phosphorus-centered radicals in chemical synthesis.
What is the CAS number and formula for Diphenylphosphine?
+
The CAS number for Diphenylphosphine is 829-85-6, and its linear formula is (C6H5)2PH.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Diphenylphosphine with an assay of 98%. This product is not represented as USP, BP, or EP grade.
What are the primary safety hazards associated with Diphenylphosphine?
+
Diphenylphosphine is pyrophoric (self-heating) and can ignite spontaneously in air (H250). It is also irritating to the skin, eyes, and respiratory tract (H315, H319, H335). Appropriate personal protective equipment, including gloves, eyeshields, and a suitable respirator, is essential for safe handling.
How is Diphenylphosphine packed, shipped, and exported?
+
Diphenylphosphine is packed and shipped according to stringent safety regulations for hazardous materials. As a global supplier, Tech Serve Solutions is experienced in exporting such chemicals worldwide.
How can I request a sample or quote for Diphenylphosphine?
+
To request a sample or a quotation for Diphenylphosphine, please contact our sales department through the website or by phone, referencing the product name and CAS number 829-85-6.
▶ Related products
Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis