A NEW METHOD OF PREPARING COLLOIDAL SILVER AND GOLD BY MEANS OF A CONTINUOUS HIGH FREQUENCY ELECTRICAL DISCHARGE

Abstract

A new method of preparing metal sols, by the use of a continuous high frequency electrical discharge of sufficient intensity to produce a sinusoidal spark, is described. Stable yellow colloidal silver and purple colloidal gold have been prepared, without a protective colloid, by this method. Chemical determinations have failed to indicate any silver oxide in the yellow silver sols.