Abstract

Spherical Ag powder was prepared in the system of AgNO_3;and;NaBH_4 by wet chemical reduction method. The size of Ag powder was increased as the reaction temperature and the concentration of reducing agent was decreased in the constant concentration of dispersion agent. Optimum conditions of producing Ag powder having 1.39µm of D50 was 1M of AgNO_3, 0.5M of NaBH_4, 1.5g of Gelatine in the room temperature.

• Keywords: Wet chemical reduction method;AgNO_3;NaBH_4;Reducing agent;Dispersion agent;