Toner for electrostatic charged image development and process for preparing the same, as well as image forming method, image forming apparatus and toner cartridge

The toner for electrostatic charged image development of the present invention is characterized in that it contains at least a binder resin, a mold releasing agent and magnetic metal particles, and the solubility of the magnetic metal particles in a 1 mol/l aqueous HNO₃ solution at 50 C. is 500 mg/gl or less.