Glycerinum Cocci, B.P.C. Glycerin of Cochineal.

Botanical name: 

Format explanation

Related entry: Cochineal

Cochineal, in coarse powder 10.00 | 2 ounces
Potassium Carbonate 1.00 | 87 ½ grains
Potassium Citrate 10.00 | 2 ounces
Glycerin 20.00 | 4 fl. ounces
Distilled Water ... to 100.00 | to 20 fl. ounces

Dissolve the potassium carbonate in 60 (12 fluid ounces) of the distilled water, and digest the cochineal in the solution, on a water-bath, for about three hours, or until exhausted; then strain, cool, add the glycerin and potassium citrate, and make up to the required volume with distilled water. The product is a somewhat thick, dark crimson liquid.

The British Pharmaceutical Codex, 1911, was published by direction of the Council of the Pharmaceutical Society of Great Britain.