Relative counterion selectivity (anions)
Relative counterion selectivity (anions)
Ion AG-1 AG-2 OH- 1.0 1.0 Benzene sulfonate 500 75 Salicylate 450 65 Citrate 220 23 I- 175 17 Phenolate 110 27 HSO4- 85 15 ClO3- 74 12 NO3- 65 8 Br- 50 6 CN- 28 3 HSO3- 27 3 BrO3- 27 3 NO2- 24 3 Cl- 22 2.3 HCO3- 6 1.2 IO3- 5.5 0.5 HPO4- 5 0.5 Formate 4.6 0.5 Acetate 3.2 0.5 Propionate 2.6 0.3 F- 1.6 0.3
AG-1 (trimethylammonum), Ag-2 (dimethylethanolammonium)