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
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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