Tetra-n-butylammonium bromide
Encyclopedia
Tetra-n-butylammonium bromide (TBAB) is a quaternary ammonium salt with a bromine
counterion
commonly used as a phase transfer catalyst
.
Bromine
Bromine ") is a chemical element with the symbol Br, an atomic number of 35, and an atomic mass of 79.904. It is in the halogen element group. The element was isolated independently by two chemists, Carl Jacob Löwig and Antoine Jerome Balard, in 1825–1826...
counterion
Counterion
A counterion is the ion that accompanies an ionic species in order to maintain electric neutrality. In table salt the sodium cation is the counterion for the chlorine anion and vice versa.In a charged transition metal complex, a simple A counterion is the ion that accompanies an ionic species in...
commonly used as a phase transfer catalyst
Phase transfer catalyst
In chemistry, a phase transfer catalyst or PTC is a catalyst that facilitates the migration of a reactant from one phase into another phase where reaction occurs. Phase transfer catalysis is a special form of heterogeneous catalysis. Ionic reactants are often soluble in an aqueous phase but...
.
See also
- Tetrabutylammonium tribromideTetrabutylammonium tribromideTetrabutylammonium tribromide is a reagent used in organic chemistry as a source of bromine. Its melting point ranges from 103-104 °C....
, with an additional Br2 unit - Tetrabutylammonium fluoride
- Tetrabutylammonium hydroxideTetrabutylammonium hydroxideTetrabutylammonium hydroxide is the chemical compound with the formula 4NOH, abbreviated Bu4NOH with the acronym TBAOH or TBAH. This species is not readily obtainable as a pure compound, but it employed as a solution in water or alcohols. It is commonly used as a base in organic chemistry...