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....
Ammonium Bromide is prepared by combining hydrogen bromide with ammonia. It can also be prepared by the reaction of ammonia with iron (II) bromide or iron (III) bromide which is obtained by passing the aqueous bromine solution over iron fillings....
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