Tetrabutyl Ammonium Bromide (TBAB) (CAS 1643-19-2) is a quaternary ammonium salt supplied as white crystals or powder, used as a phase transfer catalyst in organic synthesis, in ion-pair chromatography, and in the manufacture of pharmaceuticals and dyes. Density 1.04 g/cm³, melting point 100-104°C, highly soluble in water and organics; quaternary ammonium salt.
Typical Properties
| Molecular formula | C16H36N.Br |
|---|---|
| Molecular weight | 322.37 g/mol |
| Appearance | white crystals or powder |
| Form | Crystalline Powder |
| Color | White to slightly cream |
| Odor | Amine like |
| Melting point | 100-102 °C |
| Boiling point | 102 °C |
| Density | 1.039 g/mL at 25 °C |
| Water solubility | 600 g/L (20 °C) |
| Flash point | 100°C |
| pH | 3.5 to 7.0 (50 g/L, 25 °C) |
| GHS signal word | Warning · Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 29239000 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Tetrabutyl Ammonium Bromide (TBAB)
Applications
Used as phase transfer catalyst in organic synthesis; in ion-pair chromatography; in pharmaceuticals and dyes; in polymer chemistry as accelerator.
Safety & Risks
Irritates skin, eyes, respiratory tract; harmful if swallowed. Avoid dust; incompatible with strong oxidizers. Low bioaccumulation; use PPE, hygiene practices.
Packaging
In 25kg drums or bags; store in ventilated areas.