A Laboratory Manual of Chemistry, Medical and Pharmaceutical ... |
Contents
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Other editions - View all
A Laboratory Manual of Chemistry, Medical and Pharmaceutical John Harper Long No preview available - 2022 |
A Laboratory Manual of Chemistry, Medical and Pharmaceutical John Harper Long No preview available - 2022 |
Common terms and phrases
acetic acid ACIDUM added alcohol alkaline ammonia ammonia water ammonium carbonate antimony arsenic barium chloride bismuth boiling water bromide C.c. of distilled C.c. of water calcium carbonic acid cent color colorless compounds cool copper crystalline crystals decant decomposed Description.-A dish dissolved distilled water dryness effervescence evaporate excess ferric chloride ferric hydrate ferrous sulphate filter filtrate flask formed fused glass H₂SO heat hydrate hydrochloric acid hydrogen sulphide insoluble iodine iron lime liquid magnesium mercuric chloride metal mixed mixture mother liquor neutral nitric acid obtained odor oleate oxalate oxide Pharmacopoeia phosphate phosphorus porcelain POTASSII potassium bicarbonate powder preparation present pure quantity reaction readily soluble reagent residue salt saturated silver nitrate SODII sodium carbonate sodium hydrate soluble in water solution of ferric specific gravity stoppered bottles sufficient sugar sulphuric acid temperature tube urine wash water-bath weight white precipitate yellow yield zinc
Popular passages
Page 318 - ... so as to separate the liquid portion. Reduce the pressed cake to powder, mix it with sufficient ether, to which one-sixteenth of its bulk of water has been added, to form again a soft paste, and press this as before. Mix the expressed liquids, and expose the mixture to spontaneous evaporation until, by the aid, subsequently of a little heat, it has acquired the consistence of a soft extract; then place it on earthen plates or dishes, and dry it in a hot-air chamber at a temperature not exceeding...
Page 384 - To the filtered liquid (representing 5 grams of opium) add 5 cc of alcohol and 25 cc of ether, and shake the mixture, then add the chloride of ammonium, shake well and frequently during half an hour, and set it aside for twelve hours.
Page 168 - Into this liquid pour the solution of soda, agitate well, let the precipitate completely subside, decant the supernatant fluid, collect the precipitate on a filter, and wash it with cold distilled water, until the washings cease to have colour. Transfer the precipitate to a porcelain dish containing...
Page 166 - Mix the purified sulphide of antimony with the solution of soda and 30 parts of distilled water, and boil the mixture over a gentle fire for two hours, constantly stirring, and occasionally adding distilled water so as to preserve the same volume. Strain the liquid immediately through a double muslin strainer, and drop into it, while yet hot, diluted sulphuric acid so long as it produces a precipitate. Wash the precipitate with hot distilled water until the washings are at most but very slightly...
Page 179 - ... crystallize. Let the crystals drain in a glass funnel, and dry them by exposure to the air, carefully avoiding the contact of all organic substances. To obtain the nitrate in rods, fuse the crystals in a capsule of platinum or thin porcelain, and pour the melted salt into proper moulds. Nitrate of silver must be preserved in bottles, carefully stoppered. Characters.
Page 318 - Expose the powdered galls to a damp atmosphere for two or three days, and afterwards add sufficient ether to form a soft paste. Let this stand in a well closed vessel for twenty-four hours, then having quickly enveloped it in a linen cloth, submit it to strong pressure in a suitable press so as to separate the liquid portion. Reduce the pressed cake to...
Page 288 - Distilled Water ..... 2 pints Mix the oxide of antimony and acid tartrate of potash with sufficient distilled water to form a paste, and set aside for twentyfour hours. Then add the remainder of the water, and boil for a quarter of an hour, stirring frequently. Filter, and set aside the clear filtrate to crystallise. Pour off the mother liquor, evaporate to one third, and set aside, that more crystals may form. Dry the crystals on filtering paper at the temperature of the air.
Page 384 - Triturate together the opium, lime, and 20 cc of distilled water, in a mortar, until a uniform mixture results ; then add 50 cc of distilled water, and stir occasionally, during half an hour. Filter the mixture through a plaited filter...
Page 384 - ... solution as completely as possible upon the inner filter. Add 10 Cc of ether to the contents of the flask, rotate it, and again decant the ethereal layer upon the inner filter.
Page 149 - Transfer the mass quickly to a heated iron mortar containing the remainder of the sugar of milk, and reduce the whole to powder. Transfer the powder at once to small, well-dried bottles, which must be securely stopped, and kept in a cool and dark place. A yellowish-white or grayish powder, very hygroscopic, odorless, having a sweetish, ferruginous taste, and a slightly acid reaction. Soluble in 7 parts of water at 15° C. (59° F.), forming an almost clear solution ; only partially soluble in alcohol....