RXMARINE CHEMICAL TAG::
Ammonium bromide is used for photography in films, plates and papers; in fireproofing of wood; in lithography and process engraving; in corrosion inhibitors; and in pharmaceutical preparations.
Tetrabutylammonium bromide (TBAB) is a quaternary ammonium compound. It is the most widely used phase transfer catalyst. ... TBAB is reported to decrease retention time and remove peak tailing by acting as an ion pair reagent during the chromatographic analysis of quaternary ammonium compounds.
Application. Tetramethylammonium bromide may be used as a template in the synthesis of small colloidal zeolite Y nanocrystals. Tetrabutylammonium bromide may be used in the molten state in the following processes: Synthesis of (2S)-5-(3-phenyl-2-phthalimidylpropanoylamino)isophthalic acid.
Tetrabutylammonium bromide is prepared buy mixing n-butylbromide with tributylamine in acetonitrile, in an inert atmosphere, under reflux conditions for a sufficient period of time to form a solution containing tetrabutylammonium bromide, cooling the resulting solution; mixing the solution with water, thus forming a