摘要 |
A charge control agent of the present invention comprises aggregate particles of an azo-type iron complex salt represented by the following chemical formula [1] in the chemical formula [I], R<SUP>1</SUP>-, R<SUP>2</SUP>-, R<SUP>3</SUP>-, R<SUP>4</SUP>-, R<SUP>5</SUP>- and R<SUP>6</SUP>- are same or different to each other, n is 0.7 to 0.99, the aggregate particles have an average particle size of 1 to 4 microns and an average particle size of a primary particulate crystalline, that is fined the aggregate particles with ultrasonic irradiation, is at most 3 microns. A toner for developing an electrostatic image comprises a resin for the toner and the charge control agent.
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