| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide silver particulates suitable as the raw material for a conductive paste or the like which can be fired at low temperature, and to provide a method for producing the silver particulates. <P>SOLUTION: The alcohol solution of the amine complex of silver nitrate prepared using silver nitrate and one or more kinds of aliphatic amines of 2-4C which are water-soluble or may dissolve in water, is added to a water-alcohol mixed solvent into which ascorbic acid or erythorbic acid is dissolved to cause reduction and precipitation, the obtained silver particulates are separated and cleaned, and are thereafter subjected to vacuum drying or vacuum-freeze drying at a temperature of ≤30°C to obtain the silver particulates in which the average particulate diameter (D<SB POS="POST">SEM</SB>) is 30 to 100 nm, the aliphatic amines of 2-4C and the amine complex of silver nitrate are present on the surfaces of the particulates, and the peak of the DTA (Differential Thermal Analysis) curve, is in the range of 100 to 140°C. <P>COPYRIGHT: (C)2012,JPO&INPIT |
