Tetrabutylammonium Bromide CAS 1643-19-2

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Tetrabutylammonium Bromide CAS 1643-19-2

Tetrabutylammonium Bromide CAS 1643-19-2 TBAB, safe delivery to USA, Europe.

CAS 1643-19-2 Basic Parameter

Product Name Tetrabutylammonium bromide
Synonyms 1-Butanaminium,N,N,N-tributyl-,bromide;1-Butanaminium,N,N,N-tributyl-,bromide;n,n,n-tributyl-1-butanaminiubromide; IPC-TBA-BR; Tetrabutylazaniumbromide; Tetrabutylaminium·bromide;Tetrabutylammoniumbromide,99%,forion-pairchromatography
CAS NO 1643-19-2
EINECS 216-699-2
Molecular Formula C16H36BrN
Molecular Weight 322.37
Melting Point 102-106 °C(lit.)
Boiling Point 102 °C
Density 1.039 g/mL at 25 °C
Storage Store below +30°C

TBAB Picture

C16H36BrN, CAS 1643-19-2, Tetrabutylammonium bromide, TABA,

What is CAS 1643-19-2?

Tetrabutylammonium bromide (TBAB) is a quaternary ammonium salt with a bromide commonly used as a phase transfer catalyst. It is used to prepare many other tetrabutylammonium salts by salt metathesis reactions. The anhydrous form is a white solid.

Preparation and reactions

Tetrabutylammonium bromide can be prepared by the alkylation of tributylamine with 1-bromobutane.

Tetrabutylammonium bromide is used to prepare other salts of the tetrabutylammonium cation by salt metathesis reactions.

It serves as a source of bromide ions for substitution reactions. It is one of a commonly-used phase transfer catalyst. As its melting point is just over 100 °C and decreases in the presence of other reagents, it can be considered an ionic liquid.

Role in semi-clathrate formation

TBAB is being extensively studied as a thermodynamic promoter in the formation of semi-clathrate hydrates which greatly brings down the pressure – temperature requirement for forming gas hydrates.

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