Liquor Carmini, B.P.C. Solution of Carmine.
Related entry: Carmine
|Carmine||6.00|||||1 oz. 87 1/2 gr.|
|Solution of Ammonia||35.00|||||7 fl. ounces|
|Potassium Citrate||10.00|||||2 ounces|
|Distilled Water||to 100.00|||||to 20 ounces|
Triturate the carmine with the solution of ammonia, add the glycerin, and heat on a water-bath, with constant stirring, until the ammonia is dissipated; then cool, dissolve the potassium curate in the mixture, and add sufficient distilled water to make up to the required volume.
Solution of carmine is a suitable colouring agent for alkaline mixtures, mouth washes, lotions, etc., in the proportion of about 1 per cent.; the red colouring matter is precipitated by acids, so that a yellow colouration is produced when the solution is added to acid liquids.
The British Pharmaceutical Codex, 1911, was published by direction of the Council of the Pharmaceutical Society of Great Britain.