Tetrabutylammonium chloride

Tetrabutylammonium chloride
Identifiers
3D model (JSmol)
3571227
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.012.905
EC Number
  • 214-195-7
10839
  • InChI=1S/C16H36N.ClH/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
    Key: NHGXDBSUJJNIRV-UHFFFAOYSA-M
  • CCCC[N+](CCCC)(CCCC)CCCC.[Cl-]
Properties
[(CH3CH2CH2CH2)4N]Cl
Molar mass 277.92 g·mol−1
Appearance white solid
Density 1.018 g/cm3
Melting point 90 °C (194 °F; 363 K)
Hazards
GHS labelling:
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tetrabutylammonium chloride is the organic compound with the formula [(CH3CH2CH2CH2)4N]+Cl−, often abbreviated as [Bu4N]Cl, where Bu stands for n-butyl. A white water-soluble solid, it is a quaternary ammonium salt of chloride.

It sees use as a phase-transfer catalyst, although it is less popular that the corresponding bromine salt TBAC. It can also undergo salt metathesis reactions to form a variety of other tetrabutylammonium salts. Often tetrabutylammonium bromide is preferred as a source of tetrabutylammonium because it is less hygroscopic than the chloride.

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