| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide silver powders which have no deterioration of reaction yield in its production, are excellent in dispersibility and have no flocculation so that the particle size or its distribution of flaked silver powders can be managed and controlled when using as a raw material of the flaked silver powders, and also to provide a method for production thereof. <P>SOLUTION: In a method for production of silver powders comprising reducing and precipitating the silver particles in a water-based reaction system containing at least one of a silver salt or silver oxide, a fatty acid salt is added at least during a reducing reaction. The silver powder obtained thereby exhibits a one-peak sharp particle size distribution in which a cumulative 50% particle size D50 by a laser diffraction dispersion type particle size distribution measurement device is ≤1.6 μm, a cumulative 90% particle size D90 is ≤3.0 μm, and there is no powder having the particle size of >10 μm. <P>COPYRIGHT: (C)2012,JPO&INPIT |
