A Compendium of the Course of Chemical Instruction in the Medical Department of
The book A Compendium of the Course of Chemical Instruction in the Medical Department of was written by author Robert Hare Here you can read free online of A Compendium of the Course of Chemical Instruction in the Medical Department of book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Compendium of the Course of Chemical Instruction in the Medical Department of a good or bad book?
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The fresh expressed juice of the monkhood, aco- nitum napellus, being boiled and filtered, the resulting clear liquor, subjected to an excess of carbonate of potash, is to be agitated with ether so long as it takes up any thing. On vaporizing the ether, aconitia is deposited. From the dry plant, or its seeds, a solution of aconitia may be ob- tained by water holding an ounce of sulphuric acid for each pound. This may be decomposed by carbonate of OF BELLADONIA AND DATURIA. 513 soda, and the alk...ali extricated from the resulting precipi- tate by ether or alcohol. Aconitia crystallizes from an etherial or alcoholic solution, partly in white grains, but for the most part forms a colourless vitreous-looking mass. It has a sharp bitter taste, and is intensely poisonous. It is capable of neutralizing the most powerful acids. Its so- lutions give a white precipitate with alkalies proper, or with chloride of gold; with iodine an orange precipitate. Of Belladonia, or Belladonine. 5474. This alkali is obtained by subjecting the dried root of belladonna to distillation with a solution of caustic potash, precipitating, from the liquid which comes over, the alkali with which it is accompanied, by chloroplatinic acid, and heating the washed precipitate with carbonate of potash.
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