Catalytic Effect of Ionic Surfactants on the Extraction Rate of Nickel ( II ) and Palladium ( II ) with 2-( 5-Bromo-2-pyridylazo )-5-diethylaminophenol in the Toluene / Water System

The effects of the surfactants on the extraction rate of nickel(II) and palladium(II) with 2-(5-bromo-2-pyridylazo)-5-diethyaminophenol (5-Br-PADAP) in the toluene/water system were investigated by the centrifugal liquid membrane (CLM) method. The extraction rates of the metal(II) ions were increased by the addition of the ionic surfactants having a charge… CONTINUE READING