Present name. - Tri-Argentic Phosphate. Ag3Po4.

A yellow powder, prepared by precipitation from a solution of Nitrate of Silver by Rhombic Phosphate of Soda, and washing the precipitate with all the precautions already mentioned under Argenti Chloridum. The well-known action of both the ingredients of this substance on the nervous system renders it worthy of a careful proving.

Preparation. - Trituration, which must be kept in the dark.