Chemical name: Triphenylphosphine (TrPP)
CAS number: 603-35-0

product sheet

Description and features
TrPP (Triphenylphosphine) is a white solid (powder / flakes), its chemical formula is C18H15P. TrPP is an organophosphorus compound and is a widely used catalyst. It finds its application in pharmaceuticals, vitamins, agrochemicals, OXO-alcohols, coatings, epoxies, resins, fragrances, polycarbonates. This material is highly soluble in non-polar organic solvents like benzene and diethyl ether.

Triphenylphosphine is also known as TPP, TrP and triphenylphosphane.

Product information

CAS number603-35-0
EC number 210-036-0
HS code2931 39

Molecular and structural information

Molecular formula C18H15P
Molecular weight262.29 g/mol
Smiles notationC1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3
Structural formula:triphenylphosphine


AppearanceWhite to almost white crystal flakes or white powder.
Assay≥ 99.50 %
Melting point80.0 - 82.0 ºC
Loss on drying≤0.10 %
Triphenylphosphine Oxide≤0.50 %
Arsenic assay≤0.1 mg/kg
Magnesium≤0.1 mg/kg
Iron≤0.1 mg/kg
Sodium≤0.1 mg/kg
Tin≤0.1 mg/kg

Physicochemical information

Boiling range195.0- 205.0 °C
Bulk density500 - 600 kg/m3
Density1.194 g/cm3
Melting range79.0 - 82.0 °C
Partition coefficient (log Pow)> 2.587
Solubility in water0.09 mg/l @ 25 °C
Vapour pressure0.0000029 hPa @ 25 °C

Available packaging: 25 KG paper bags, 500 KG big bags.
Special packaging is available on request

Shipment Info
Europe and United States: Provided TrPP is on stock our local warehouses our lead time is about one week if delivered in 25 KG paper bags.
Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

Store Triphenylphosphine in a cool and well-ventilated area and in line with legal requirements.
Keep TrPP away from heat sources and oxidizing agents.

This substance (CAS: 603-35-0) has been registered (FULL substance) under REACH (EC) 1907/2006.

A Material Safety Data Sheets (MSDS) is available for Triphenyl phosphine and all other products supplied by Vesta Intracon BV. An MSDS describes the hazards of a product and explains how a product can be safely handled, used and stored. Besides it provides important regulatory and emergency response information for the purchased product.

Triphenylphosphine (TrPP | CAS: 603-35-0): Disclaimer. This information is supplied solely for informational purposes and Vesta Chemicals bv makes no guarantees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Terms of Sale. Nothing in this document is legal advice or is a substitute for competent legal advice.