common sources of ion of scandium(III) cation vs bromide anion

scandium(III) cation bromide anion | common sources of ion

scandium(III) cation | scandium(III) triflate (1 eq) | scandium(III) oxalate hydrate (2 eq) bromide anion | trimethylphenylammonium bromide (1 eq) | triethylmethylammonium bromide (1 eq) | triethylhexylammonium bromide (1 eq) | tetrapropylammonium bromide (1 eq) | tetraphenylphosphonium bromide (1 eq) | tetraphenylantimony(V) bromide (1 eq) | tetrapentylammonium bromide (1 eq) | tetraoctylphosphonium bromide (1 eq)