Contractions. - Atrop-s. At-s.

Present name. - Atropic Sulphate. C17H13Nso6 ?

The British Pharmacopoeia directs this to be prepared as follows: -

Take of

Atropia .....

120 grains;

Distilled Water

4 fluid drachms;

Diluted Sulphuric Acid .

A sufficiency.

Mix the Atropia with the water and add the acid gradually, stirring them together until the alkaloid is dissolved and the solution is neutral. Evaporate it to dryness at a temperature not exceeding 100°.

Characters and Tests. - A colourless powder, soluble in water, forming a solution which is neutral to test-paper, and when applied to the eye dilates the pupil as the solution of Atropia does. It leaves no ash when burned with free access of air. It is a powerful poison.

Preparation. - Solution in distilled water up to 1, then use dilute alcohol for 3X, and after that rectified spirit.

Reference to Horn. Proving. - Brit. Journ. of Horn., vol. xv.

Proper forms for dispensing. - 1 and 3X, Solution only. 2 and upwards, Tincture, Pilules, or Globules.