An Introduction to Pharmaceutical ChemistryJ. van Voorst, 1867 - 447 pages |
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... lime , magnesia , and alumina . The author confidently believes that this change , extensively adopted by scientific men , will be accepted and become popular with phar- maceutical chemists , as it is a step in the direction of consis ...
... lime , magnesia , and alumina . The author confidently believes that this change , extensively adopted by scientific men , will be accepted and become popular with phar- maceutical chemists , as it is a step in the direction of consis ...
Page 12
... lime so placed that some of the chlorine given off may be inhaled . During these manipulations the operator will have observed that chlorine is of a light green colour . The tint is readily ob- served when the gas is collected in large ...
... lime so placed that some of the chlorine given off may be inhaled . During these manipulations the operator will have observed that chlorine is of a light green colour . The tint is readily ob- served when the gas is collected in large ...
Page 16
... lime , the oxide of calcium . From Magnesia , the name of the town ( in Asia Minor ) near which the substance now called " native carbonate of magnesia first discovered . 29 was The spelling is from the Saxon iren , the pronunciation ...
... lime , the oxide of calcium . From Magnesia , the name of the town ( in Asia Minor ) near which the substance now called " native carbonate of magnesia first discovered . 29 was The spelling is from the Saxon iren , the pronunciation ...
Page 23
... lime and a little water in a test - tube ; ammonia gas is given off , and may be recognized by its well - known odour . It is very soluble in water . Pass a delivery - tube , fitted as de- scribed for the preparation of oxygen and ...
... lime and a little water in a test - tube ; ammonia gas is given off , and may be recognized by its well - known odour . It is very soluble in water . Pass a delivery - tube , fitted as de- scribed for the preparation of oxygen and ...
Page 28
... lime ( Ca2HO ) with a small quantity of water . Set the mixture aside in the test - tube rack to cool . This liquid is a solution of caustic potash , or hydrate of potas- sium ( KHO ) . Made of a prescribed strength , it forms the ...
... lime ( Ca2HO ) with a small quantity of water . Set the mixture aside in the test - tube rack to cool . This liquid is a solution of caustic potash , or hydrate of potas- sium ( KHO ) . Made of a prescribed strength , it forms the ...
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Common terms and phrases
acetic acid acid gas acidulous radical add solution alcohol alkaline aluminium ammonia analysis Analytical Reactions antimony aqueous solution arsenic arsenicum Atomic weight barium basylous bismuth boiling British Pharmacopoeia calcium carbonate of potassium carbonate of sodium carbonic acid carbonic acid gas chemical chloride of calcium chromate of potassium colour compounds containing copper crucible crystals cyanide dilute dissolved distilled drop elements ether evaporated excess ferric ferrous filter filtrate formula glass grains grammes H₂O heat hydrate hydrochloric acid hydrocyanic acid hydrogen hyposulphite insoluble iodide of potassium iodine iron lead lime liquid magnesium mercury metal mixture molecular weight molecule neutral nitrate of silver nitric acid obtained odour officinal ounce oxalic acid oxide oxygen perchloride phosphate phosphoric acid platinum potassium prepared present produced pure residue salt small quantity soda sodium specific gravity starch substance sulphate sulphide sulphuretted hydrogen sulphuric acid sulphydrate of ammonium Synthetical test-tube tion tube washed yellow yield zinc
Popular passages
Page 326 - ... is the weight of a bulk of water equal to the bulk of the light body. For instance, a piece of wood weighing 12 grammes (or grains) is tied to a piece of metal weighing 22 grammes, the loss of weight of the metal in water having been previously found to be 3 grammes.
Page 324 - To express the same thing by rule, divide the weight in air by the loss of weight in water, the resulting number is the specific gravity in relation to 1 part of water, the conventional standard of comparison.
Page 362 - ten grains dissolved in water, and nitrate of silver added in excess, give a precipitate which, when washed with water and afterwards with half an ounce of solution of ammonia, and dried, weighs 12-5 grains.
Page 318 - Millilitre = 1 cub. centim. or the mea. of 1 gram, of water 1 Centilitre= 10 „ 10 „ „ 1 Decilitre = 100 ,. 100 „ „ 1 Litre =1000 „ 1000 ,, (1 kilo.) MEASURES OF LENGTH. 1 Millimetre = the thousandth part of one metre, or...
Page 279 - ... measures agitated with an equal volume of water are reduced to 45 by an absorption of 10 per cent...
Page 376 - ... minims of hydrochloric acid, and allow it to macerate for twenty-four hours. Transfer the whole to a small percolator, and after the fluid has ceased to drop, add at intervals about an ounce and a-half of similarly acidulated water, or until the fluid which passes through is free from colour.
Page 306 - ... and, stirring the whole together assiduously, continue the evaporation at a temperature not exceeding 140° F. until the extract is of a suitable consistence for forming pills.
Page 377 - Take of Opium 100 grains; Slaked Lime, 100 grains; Distilled Water, 4 ounces. Break down the Opium, and steep it in an ounce of the water for twenty-four hours, stirring the mixture frequently. Transfer it to a displacement apparatus and pour on the remainder of the water in successive portions, so as to exhaust the Opium by percolation. To the infusion thus obtained, placed in a flask, add the Lime ; boil for ten minutes, place the undissolved matter on a filter, and wash it with an ounce of boiling...
Page 305 - For educational practice either of the above-named five raw materials may be employed ; but in order that attention may be concentrated on the process by which the extracts are prepared, rather than on any one of the extracts themselves, it suffices to make an extract of some ordinary green vegetable, such as cabbage or turnip-tops. Bruise the green leaves of a good-sized cabbage in a mortar, and press out the juice; heat it gradually to 130° F., and remove the green flocks of chlorophyll which...