T

Triphenylphosphine

IUPAC: triphenylphosphane

C18H15P Laboratory Reagents CAS 603-35-0
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Quick Reference
Formula / NotationC18H15P
CAS Number603-35-0
Molecular Weight262.3
Melting Point176 °F (NTP, 1992)
Boiling Pointgreater than 680 °F at 760 mmHg (NTP, 1992)
Density1.194 at 77 °F (NTP, 1992) - Denser than water; will sink
SolubilityInsoluble (NTP, 1992)
AppearanceTriphenyl phosphine appears as white crystals. (NTP, 1992)
Also Known Astriphenylphosphane; 603-35-0; Triphenylphosphane; Triphenyl phosphine; Phosphine, triphenyl-; Triphenylphosphorus; Triphenylphosphide; Trifenylfosfin; PP 360; DTXSID5026251
CategoryLaboratory Reagents

What is Triphenylphosphine?

Triphenylphosphine is a member of the class of tertiary phosphines that is phosphane in which the three hydrogens are replaced by phenyl groups. It has a role as a reducing agent. It is a member of benzenes and a tertiary phosphine.

Formula & Notation

C18H15P

IUPAC Name: triphenylphosphane

Other Names / Synonyms: triphenylphosphane; 603-35-0; Triphenylphosphane; Triphenyl phosphine; Phosphine, triphenyl-; Triphenylphosphorus; Triphenylphosphide; Trifenylfosfin; PP 360; DTXSID5026251

Properties & Characteristics

Appearance: Triphenyl phosphine appears as white crystals. (NTP, 1992). Molecular formula: C18H15P. Molecular weight: 262.3 g/mol. Boiling point: greater than 680 °F at 760 mmHg (NTP, 1992). Melting point: 176 °F (NTP, 1992). Density: 1.194 at 77 °F (NTP, 1992) - Denser than water; will sink. Solubility: Insoluble (NTP, 1992). Vapor pressure: Vapor pressure, Pa at 50 °C: 0.017. LogP: 4.6.

Physical Data

PropertyValue
Melting Point176 °F (NTP, 1992)
Boiling Pointgreater than 680 °F at 760 mmHg (NTP, 1992)
Density1.194 at 77 °F (NTP, 1992) - Denser than water; will sink
Molecular Weight262.3
SolubilityInsoluble (NTP, 1992)
AppearanceTriphenyl phosphine appears as white crystals. (NTP, 1992)

Uses & Applications

Used as a synthetic reagent for transformations including oxidation, reduction, coupling, or functional group manipulation.

Safety Information

Hazardous reagent. May be toxic, corrosive, flammable, or reactive. Use in fume hood with full PPE. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Triphenylphosphine
Formula C18H15P
CAS Number 603-35-0
Molecular Weight 262.3
Synonyms triphenylphosphane; 603-35-0; Triphenylphosphane; Triphenyl phosphine; Phosphine, triphenyl-; Triphenylphosphorus; Triphenylphosphide; Trifenylfosfin; PP 360; DTXSID5026251

Frequently Asked Questions

Triphenylphosphine is a member of the class of tertiary phosphines that is phosphane in which the three hydrogens are replaced by phenyl groups. It has a role as a reducing agent. It is a member of benzenes and a tertiary phosphine.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.