Page:The British pharmacopœia.djvu/513

Rh TUMERIC TINCTURE.

Macerate for seven days in a closed vessel, and filter.

II.

TEST SOLUTIONS.

SOLUTION OF ACETATE OF COPPER. Take of

Dilute the acid with half a fluid ounce of the water; digest the subacetate of copper in the mixture at a temperature not  exceeding 212° F. (100° C.) with repeated stirring, and continue the heat until a dry residue is obtained. Digest this in four ounces of boiling distilled water, and by the addition of more of the water make up the solution to five fluid ounces. Filter it.

SOLUTION OF ACETATE OF POTASSIUM. Take of

Dissolve and filter.

SOLUTION OF ACETATE OF SODIUM. Take of Dissolve and filter.