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Tetraphenylphosphonium chloride

Tetraphenylphosphonium chloride is the chemical compound with the formula (C6H5)4PCl, abbreviated Ph4PCl or PPh4Cl. Tetraphenylphosphonium and especially tetraphenylarsonium salts were formerly of interest in gravimetric analysis of perchlorate and related oxyanions. This colourless salt is used to generate lipophilic salts from inorganic and organometallic anions. Thus, Ph4P+ is useful as a phase-transfer catalyst, again because it allows inorganic anions to dissolve in organic solvents.

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Further Information

Names

IUPAC nameTetraphenylphosphonium chloride

Identifiers

CAS Number: 2001-45-8

JSmol: Interactive image

ChEMBL: ChEMBL223885

ChemSpider: 144578

ECHA InfoCard: 100.016.265

PubChem: 164911

Properties

Chemical formula: CHClP2420

Molar mass: 374.84 g/mol

Appearance: colourless solid

Density: 1.27 g dm

Melting point: 272 to 274 °C (522 to 525 °F; 545 to 547 K)

Hazards

R-phrases: 36/37/38

S-phrases: 26-36

Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).

Infobox references