American Journal of Pharmacy (Volume 15)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1844 edition. Excerpt: ...fl. oz. Alcohol, 71 pints. Water, 4 pint. Dissolve the soap in the water by heat; then mix with it the alcohol in which the camphor and oil have been previously dissolved: lastly, filter. ART. XLI.--ON CITRATE OF IRON. By Lawrence Turnbull. The Citrate of Iron, an elegant preparation, has recently been introduced into this city, and prescribed by the medical faculty with much success as a tonic. As there are some precautions necessary in making this salt, and some operators having failed in their endeavors to make it, it is believed that the following notice of the process will be acceptable to the readers of the Journal. Take of Citric acid, 4 oz. Water, 4 fluid ounces. Moist hydrated per oxide of iron, a sufficient quantity. Dissolve the acid in the water, raise its temperature to about 180 Fahr., and gradually add the hydrated peroxide as fast as it is dissolved--by avoiding ebullition the oxide is taken up more rapidly, and does not lose that gelatinous consistence so important to its ready combination with acids. When the oxide ceases to be dissolved, filter the solution, evaporate it to the consistence of a thick syrup, and spread it on plates of glass, so that when dry the lamina? Am. Journ. Pharm., vol. xii. page 190. will be quite thin. The hydrated per oxide of iron should be prepared according to the formula in the U. S. Pharmacopoeia, and should always be prepared for the occasion. When carefully conducted, the above process yields a salt containing about forty per cent, of the ferruginous oxide, suitable for making either powders or pills, and sparingly soluble in cold water. As it is desirable to know how much of the hydrated oxide to prepare in any operation, all that is necessary is to regulate the quantity of proto-sulphate of...