THE VARIOUS METALLIC SALTS OF THE RESINOUS ACIDS.
Reading edition
After obtaining the potassium salts of the acids and having freed the same from the excess of the potassium hydroxide and potassium carbonate, the possibilities of the formation of different metallic salts were tried.
The soluble salts of the following metals yielded precipitates:—
Manganese
Barium
Cobalt
Silver
Mercury
Iron
Zinc
Copper
Calcium
Lead
The following metallic salts gave a complete precipitation:—
Silver
Iron (ferric)
Manganese
Since the barium and iron (ferric) salts gave the best means of separation, they were used to separate the resins.