| 摘要 |
PROBLEM TO BE SOLVED: To provide fine silver particulates having reduced flocculation, and having excellent dispersibility, and to provide a method for producing the same. SOLUTION: In the method for producing highly dispersible silver particulates by drying precipitates produced by the reduction of silver ions, silver ions are reduced in the presence of a high molecular compound having a carboxyl group and an amino group and further having high adsorptivity to silver such as casein preferably with gum arabic, and the produced precipitates are dried. The highly dispersible silver particulates have the average particle diameter of≤1.0μm, wherein the maximum peak of a particle diameter distribution is within the range of 0.4 to 0.7μm in both of a wet state and a dry state, and the distribution frequency of the peak is≥15%. COPYRIGHT: (C)2007,JPO&INPIT
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