1941-19-1

Basic information

• Product Name: TETRAMETHYLPHOSPHONIUM CHLORIDE
• Synonyms: TETRAMETHYLPHOSPHONIUM CHLORIDE;PhosphoniuM,tetraMethyl-, chloride (8CI,9CI);tetramethylphosphanium:chloride
• CAS NO: 1941-19-1
• Molecular Formula: C₄H₁₂P*Cl
• Molecular Weight: 126.56
• Product Categories: Greener Alternatives: Catalysis;Phase Transfer Catalysts;Phosphonium Salts
• Mol File: 1941-19-1.mol
• Article Data: 7

Chemical Properties

• Melting Point: 396-397℃
• Appearance: /
• CAS DataBase Reference: TETRAMETHYLPHOSPHONIUM CHLORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: TETRAMETHYLPHOSPHONIUM CHLORIDE(1941-19-1)
• EPA Substance Registry System: TETRAMETHYLPHOSPHONIUM CHLORIDE(1941-19-1)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 3
• Hazardous Substances Data: 1941-19-1(Hazardous Substances Data)

Usage

General Description

Tetramethylphosphonium chloride is a colorless liquid chemical compound often used as a phase transfer catalyst in chemical reactions. Its chemical formula is [(CH3)4P]Cl, featuring the phosphonium ion, and it is a quaternary phosphonium salt. TETRAMETHYLPHOSPHONIUM CHLORIDE is soluble in water and alcohol and is dangerous when it comes into contact with skin or if ingested. It has a high melting point around 430-432°F (221-222°C) and decomposes upon heating, producing corrosive fumes of phosphorus oxides and hydrogen chloride. It is rated as hazardous according to the GHS classification system.

InChI:InChI=1/C4H12P.ClH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1

Upstream product

• 917-64-6 methyl magnesium iodide 
• 74-87-3 methylene chloride 
• 14580-91-7 trimethyl(methylene)phosphorane 
• 18147-18-7 tert-butyldichloromethylsilane 
• 18395-90-9 Di-tert-butyldichlorosilane 
• 18165-19-0 2-chloroethyl silane 
• 75-36-5 acetyl chloride 
• 7719-12-2 phosphorus trichloride 
• 113892-37-8 {MoCl₃(CO)(P(CH₃)3)3}^(1-)*P(CH₃)4⁽¹⁺⁾={MoCl₃(CO)(P(CH₃)3)3}{P(CH₃)4} 
• 1284-81-7 tris(cyclopentadienyl)chlorouranium(IV) 
• 616-38-6 carbonic acid dimethyl ester 

Downstream Products

• 74-87-3 methylene chloride 
• 594-09-2 trimethylphosphane 
• 74-85-1 ethene 

Relevant articles and documents

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METHOD FOR PREPARING QUATERNARY PHOSPHONIUM SALTS

A two-step pathway for preparing high pure quaternary phosphonium salts is disclosed. In the first step, hydrogen phosphide (PH3) or a higher phophine reacts with a protonic compound to produce a phosphonium salt, which then reacts with a carbo

Synthesis and Structure of Cp3U=CHPMe3: A Compound with a U=C Multiple Bond

Green, crystalline Cp3U=CHPMe3 has been synthesized by the reaction of Cp3UCl with Li2PMe2 or CH2=PMe3.Its crystal structure has been determined by single crystal X-ray diffraction.The short U=CH bond distance, 2.274(8) Angstroem, and large U-C-P angle, 143.5(5) deg, indicate uranium-carbon multiple bond character.The 1J(13C1H) coupling constants within the CH group between uranium and phosphorus in Cp3U=CHPMe3 (95 Hz), Cp3U=CHPMe2Ph (100 Hz), and Cp3U=CHPPh2Me (113 Hz) are surprisingly small, but no agostic interaction UCHP can be derived from the structural data.