Manual of the medicinal preparations of iron : including their presentation, chemistry, physiological action, and therapeutic use / by Harry Napier Draper.

  • Draper, Harry Napier.
Date:
1864
Catalogue details

Licence: Public Domain Mark

Credit: Manual of the medicinal preparations of iron : including their presentation, chemistry, physiological action, and therapeutic use / by Harry Napier Draper. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    of the volumetric solution of biclu'omate of potash haye been added. Preparation Pilula. [The proportion of carbonate of iron contained in this pre- paration is the same as in the product of the formulae of the London, Edinburgh, and Dublin Colleges (about 45 p. c.*) The instructions concerning the use of boiling water are somewhat ambiguous. If the solutions be mixed at a boiling temperature the precipitate will lose carbonic acid. The intention of the authors is doubtless, not that this should be done, but to ensure the freedom of the water from air, which would convert the carbonate of iron into peroxide.] FERRI ET AMMONIA CITRAS—CITRATE OP IRON AND AMMONIA. Take of Solution of persulphate of iron, eight fluid ounces. Solution of ammonia, fourteen fluid ounces, or a sufiiciency. Citric acid, in crystals, five ounces. Distilled water, half a gallon. Add the persulphate of iron to two pints of the distilled water, and gradually pour the dilute solution into the solution of ammonia, stirring well for a few minutes; collect on a calico filter the hydrated peroxide of iron which precipitates, and wash it with distilled water until the filtrate ceases to become turbid on the addition of chloride of barium. Dissolve the citric acid in the re- mainder of the water, and digest the solution at a boiling heat on the oxide of iron. Make the liquid neutral by the * A moment's calculation will show that the statement of the Pharmacopoeia is incorrect, and that the preparation cannot contain 57 per cent, of carbonate. Also, as the volumetric process is based upon the supposition that it does contain 57 per cent., it must not be depended upon.
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