Tetrabutylammonium chloride

Tetrabutylammonium chloride
Identifiers
CAS Number	1112-67-0; 37451-68-6 Hydrate;
3D model (JSmol)	Interactive image;
Beilstein Reference	3571227
ChEBI	CHEBI:51988;
ChEMBL	ChEMBL1078612;
ChemSpider	63847;
ECHA InfoCard	100.012.905
EC Number	214-195-7;
Gmelin Reference	10839
PubChem CID	70681;
CompTox Dashboard (EPA)	DTXSID10883644 ;
	InChI 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;
	SMILES CCCC[N+](CCCC)(CCCC)CCCC.[Cl-];
Properties
Chemical formula	[(CH3CH2CH2CH2)4N]Cl
Molar mass	277.92 g·mol−1
Appearance	White crystalline solid
Density	1.018 g/cm3
Melting point	90 °C (194 °F; 363 K)
Solubility in water	Soluble
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Related compounds
Related compounds	Tetramethylammonium chloride; Tetraethylammonium chloride; Tetrapropylammonium chloride;
	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 chemical formula [(CH₃CH₂CH₂CH₂)₄N]Cl, often abbreviated as [Bu₄N]Cl, where Bu stands for n-butyl. It is a white crystalline solid. It is soluble in water. It is a quaternary ammonium salt. It consists of tetrabutylammonium cations [(CH₃CH₂CH₂CH₂)₄N]⁺ and chloride anions Cl⁻.

It sees use as a phase-transfer catalyst, although it is less popular that the corresponding bromine salt TBAB. It can also undergo salt metathesis reactions to form a variety of other tetrabutylammonium salts.^[2]^[3] Often tetrabutylammonium bromide is preferred as a source of tetrabutylammonium because it is less hygroscopic than the chloride.^[4]

References

↑ Reichenbach, Judith; Ruddell, Stuart A.; González-Jiménez, Mario; Lemes, Julio; Turton, David A.; France, David J.; Wynne, Klaas (31 May 2017). "Phonon-like Hydrogen-Bond Modes in Protic Ionic Liquids". Journal of the American Chemical Society. 139 (21). See bottom of Supporting Information: 7160–7163. doi:10.1021/jacs.7b03036.
↑ Barder, T. J.; Walton, R. A. (1985). "Tetrabutylammonium Octachlorodirhenate(III)". Inorganic Syntheses. Vol. 23. pp. 116–118. doi:10.1002/9780470132548.ch22. ISBN 9780470132548. {{cite book}}: |journal= ignored (help)
↑ Dilworth, J. R.; Hussain, W.; Hutson, A. J.; Jones, C. J.; McQuillan, F. S. (1997). "Tetrahalo Oxorhenate Anions". Inorganic Syntheses. pp. 257–262. doi:10.1002/9780470132623.ch42. ISBN 9780470132623.
↑ Klemperer, Walter G. (1990). "Tetrabutylammonium Isopolyoxometalates". Inorganic Syntheses. Vol. 27. pp. 74–85. doi:10.1002/9780470132586.ch15. ISBN 9780470132586.