PROCESS FOR MAKING HIGHLY DISPERSIBLE SPHERICAL SILVER POWDER PARTICLES AND SILVER PARTICLES FORMED THEREFROM

摘要

Disclosed is an improved process for making highly dispersible, spherical silver particles. In particular, the invention is directed to a process for making silver particles, which are very high solids and highly ordered. The silver particles formed are particularly useful in electronic applications. The particles are produced by reacting on aqueous nitric acid solution of a silver salt with a reducing solution comprising ascorbic acid with a surface modifier and a particle size modifier at a pH of less than or equal to 6.