Recoil reactions of128I in liquid methyl iodide, ethyl iodide and n-butyl iodide target systems in the presence of benzene diluent have been studied by the charged plate technique. The investigations have been carried out over a wide range of diluent concentration. It has been observed that there are more collected recoil charged128I species on the anode than on the cathode. The presence of benzene diluent in the target systems prior to neutron irradiation reduces the recoil collection on both electrodes.