The spectacular advances made in the growth of single crystals with or without suitable addition of impurities have facilitated the fabrication of transistor, IC’s, piezoelectric filters, solid-state lasers and so on. The crystal growth technology directly used for the growth and development in the field of electronics, fibre-optics communication and laser. The pure crystals of copper sulphate, nickel sulphate, nickel sulphate doped with zinc sulphate, zinc sulphate and magnesium sulphate were grown by slow evaporation method at room temperature. The grown crystals were subjected to dielectric and AC conductivity studies and the results are discussed.