| 摘要 |
PURPOSE:To manufacture cadmium sulfoselenide for electrophotography whose granular form is uniform and grain size is equal by adding a mixed flux of NaCl and CdCl2 under a specified condition to a mixture consisting of In-contg. CdS and CdSe and calcining the mixture and treating the calcined substance with aqueous ammonia and calcining it again. CONSTITUTION:>=20wt% preferably 30-50wt% mixed flux consisting of NaCl and CdCl2 is added to a mixture of CdS and CdSe contg. about 10-20X10<-4>mol In and Cu respectively per 1mol and the mixture is calcined at the temp. higher than the m.p. of the flux by >=50 deg.C (preferably at about <=600 deg.C). Then, the resulting cadmium sulfoselenide powder is added in aqueous ammonia of about 0.3-0.8mol/l concn. at the rate of about 5-200g per 1l treatment soln. and dispersed under stirring and preferably ultrasonic wave is superposed thereto. After the treatment has been finished, the powder is calcined again at about 400- 450 deg.C.
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