The elements of materia medica and therapeutics . xture, as it calcines, will gradually assume a pasty form,during which transition it must be tossed about with much manuallabour and dexterity. When the conversion into a chemical com-pound is seen to be completed by the cessation of the foetid animalvapours, remove the pasty mass with an iron ladle. If this bethrown, while hot, into water, some of the Prussic acid will be con-verted into ammonia, and of course the usual product it to cool, dissolve it in water, clarify the solution by filtrationor subsidence, evaporate, and, o
The elements of materia medica and therapeutics . xture, as it calcines, will gradually assume a pasty form,during which transition it must be tossed about with much manuallabour and dexterity. When the conversion into a chemical com-pound is seen to be completed by the cessation of the foetid animalvapours, remove the pasty mass with an iron ladle. If this bethrown, while hot, into water, some of the Prussic acid will be con-verted into ammonia, and of course the usual product it to cool, dissolve it in water, clarify the solution by filtrationor subsidence, evaporate, and, on cooling, yellow crystals of the ferro-prussiate of potash will form. Separate these, re-dissolve them inhot water, and by allowing the solution to cool very slowly, largerand very regular crystals may be had. ? 1 New York Medical und Physiological Journal, 1823, quoted by Richter, Ausf. Arzneim. Mat. Med. i. 233. Frorieps Notizen, Bd. xvij. 340. United States Dispensatory. Ures Dictionary of Chemistry. FERROCYANIDE OF 128. 853.
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Keywords: ., bookcentury1800, bookdecade1840, booksu, booksubjectmateriamedica
