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189138 Sigma-Aldrich

Tetrabutylphosphonium bromide

98%

  • CAS Number 3115-68-2

  • Linear Formula (CH3CH2CH2CH2)4P(Br)

  • Molecular Weight 339.33

  •  Beilstein/REAXYS Number 4160474

  •  EC Number 221-487-8

  •  MDL number MFCD00011853

  •  PubChem Substance ID 24851366

  •  NACRES NA.22

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Properties

Related Categories Chemical Synthesis, Phase Transfer Catalysts, Phosphonium Salts, Synthetic Reagents
assay   98%
mp   100-103 °C (lit.)
SMILES string   [Br-].CCCC[P+](CCCC)(CCCC)CCCC
InChI   1S/C16H36P.BrH/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;/h5-16H2,1-4H3;1H/q+1;/p-1
InChI key   RKHXQBLJXBGEKF-UHFFFAOYSA-M

Description

Application

Tetrabutylphosphonium bromide (TBPB) is a quaternary salt which can be used:
• As a medium to disperse ruthenium catalyst for the synthesis of ethylene glycol from synthesis gas via ruthenium melt catalysis.
• As a catalyst supported on silica or alumina for the halogen exchange reaction to synthesize alkyl bromide from alkyl chloride.
• To synthesize various ionic liquids on mixing with different proportions of 1,3-dimethylurea for capturing NO gas.
• As a hydrogen-bond acceptor along with levulinic acid as a hydrogen-bond donor for the preparation of deep eutectic solvents to separate toluene from toluene/n-hexane mixtures.
• To prepare ionic semiclathrate hydrates.

Packaging

100, 500 g in poly bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 3464 6.1 / PGIII
WGK Germany 
1
RTECS 
TA2417000
Flash Point(F) 
554 °F
Flash Point(C) 
290 °C
Protocols & Articles
Peer-Reviewed Papers
15

References

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