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Tetra Butyl Ammonium Bromide

Phase Transfer Catalyst | 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.


 AppearanceWhite Crystalline Hydroscopic powder

A) It gives characteristic test of Bromide

B) It Gives positive test with Bromo Phenol blue solution

 SolubilitySoluble in Water
 Moisture ContentNMT 0.5 %
 Melting Point100°C – 104°C
 Free Amine SaltNMT 0.5 %
 Free AmineNMT 0.5 %
 Sulphated AshNMT 0.5 %
 Assay (by Titrimetry)NLT 98.0%


Tetrabutylammonium bromide (TBAB) might be utilized as a part of the liquid condition in the below procedures:

·        Synthesis of isophthalic acid

·        Synthesis of alkyl-secondary pyrroles without impetus and natural solvent

·        Synthesis of dithioacetals against acetals through transthioacetalisation in a dissolvable free condition

·        Synthesis of polyamides through the polymerization of diisocyanates as well as terephthalic corrosive

·        Enzyme the expansion of thiols to bound alkenes

·        Poly (vinyl chloride) Dehydrochlorination

·        Utilized with phosphorus pentoxide for greener deoxybromination


·        Prepare for making Halogenated Heteroaryl Compounds


50 Kg Drum packing