Formulary for the preparation and mode of employing several new remedies : namely, morphine, iodine, quinine ... / with an introduction, and copious notes, by the late Charles Thomas Haden ; translated from the French of the third edition of Magendie's "Formulaire."
- François Magendie
- Date:
- 1824
Licence: Public Domain Mark
Credit: Formulary for the preparation and mode of employing several new remedies : namely, morphine, iodine, quinine ... / with an introduction, and copious notes, by the late Charles Thomas Haden ; translated from the French of the third edition of Magendie's "Formulaire.". Source: Wellcome Collection.
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![the supernatant alcoholic solution, more crys¬ tals may be obtained11.] Dr. Thomson has given the elementary composition of morphine in the Annals of Phi¬ losophy for June, 1S201. He also there de¬ scribes what he considers to be an easy method for procuring this base in a state of purity. He precipitates a strong infusion of opium by caustic ammonia, separates the brownish- white precipitate by means of the filter, eva¬ porates the infusion to a sixth of its volume ; and on mixing it with a fresh quantity of am¬ monia, he obtains a new precipitate of pure morphine. He gives time for the deposit to form; then separates it, by means of the filter, and washes it with cold water. After it is sufficiently drained, he sprinkles it with a little alcohol, which he permits to pass through the filter; this fluid dissolves a large portion of the colouring matter, and also a little of the morphine. He then entirely dissolves the morphine in acetic acid, and takes away the colouring matter which remains, by treating the solution with a little ivory-black, shakes 11 [Ure’s Dictionary of Chemistry, 2d edition, 1823.] It is useless to give this account, because Dr. T. himself shews that it must be inaccurate. —„ Tr.](https://iiif.wellcomecollection.org/image/b30796568_0026.jp2/full/800%2C/0/default.jpg)
