Practical Medical Chemistry, for Physicians and Students |
Common terms and phrases
acetic acid albumin alkaline alkaloids ammonia ammonium hydroxide amount Analytical Reactions antimony arsenic Atomic weight atropine bile blood blue color boiling bromide c.c. of water calcium carbonate cent characteristic odor chemical chloroform chromate colorless containing copper corpuscles crystalline crystals cyanide deci-normal dextrose dilute dioxide dissolve distilled drops emetics ether evaporate excess Fehling's solution ferments filter filtrate fluid formed gastric gives glucose grammes heat hydrochloric acid hydrogen insoluble in alcohol iodine liquid magnesium mercuric chloride metals milk mixture morphine neutral NH4OH nitric acid nitrogen normal obtained odorless Official compounds oxalate oxide oxygen phenol phosphates platinum poisoning potassium chromate potassium iodide powder precipitates white present proteins reagent residue salicylate salts silver nitrate sodium chloride sodium hydroxide solu soluble soluble in water specific gravity starch substance sugar sulphate sulphide sulphuric acid taste test-tube tion tube urates urea uric acid urine Valence volume warm wash yellow
Popular passages
Page 10 - Law, which states that equal volumes of all gases at the same temperature and pressure contain the same number of molecules...
Page 113 - ... and then washed in water, and boil for from 5 to 10 minutes. Remove the cloth, thoroughly wash it in water, and boil in a very dilute hydrochloric acid solution. After washing out the acid dissolve the colour in a solution of ammonium hydroxide (1:50).
Page 214 - AOAC is as follows : In a weighed dish put 20 cc of milk from a weighing bottle ; add 6 cc of nitric acid, evaporate to dryness, and burn at a low red heat till the ash is free from carbon.
Page 178 - ... it is surrounded by a deep brownish-red cloud of ferric sulphocyanate, which quickly disappears on shaking, as long as any of the silver nitrate remains unchanged. When the point of saturation is reached and the silver has all been precipitated, a single drop of the sulphocyanate solution produces a faint brownish-red color, which does not disappear on shaking. Note the number of cc. of the sulphocyanate solution used, and dilute the whole of the remaining solution so that equal volumes of this...
Page 11 - A molecule of sulphuric acid is regarded as made up of two atoms of hydrogen, one atom of sulphur, and four atoms of oxygen, and similarly for other chemical compounds.
Page 113 - ... immerse another piece of wool, and boil it again. With vegetable coloring matter this second dyeing gives practically no color, and there is no danger of mistaking a fruit color for one of coal-tar origin. It is absolutely necessary that the second dyeing should be made, as some of the coal-tar dyes...
Page 112 - Wool." (a) METHOD OF SOSTEGNI AND CARPENTIERI.* Dissolve from 10 to 20 grams of the sample in 100 cc of water, filter if necessary, acidify with from 2 to 4 cc of a 10 per cent solution of hydrochloric acid. In this solution immerse a piece of woolen cloth, which has been washed in a very dilute solution of boiling potassium hydroxid and then washed in water, and boil for from 5 to 10 minutes. Remove the cloth, thoroughly wash it in water, and boil in a very dilute hydrochloric acid solution. After...
Page 10 - The vapor density of any gas is the weight of a given volume of it in terms of the weight of an equal volume of hydrogen at the same temperature and pressure. In...
Page 206 - Hemoglobin, by the hemoglobinometer of Gowers. Two glass tubes are provided, one graduated into 120 parts for the blood, the other containing a preparation of glycerine jelly so tinted with carmine and picrocarmine that its color is that of normal blood diluted with 100 parts water. Twenty cubic mm. of blood are measured by means of a capillary pipette into a few drops of distilled water previously placed in the graduated tube. The blood is then diluted until the tint is the same as that of the standard....
Page 10 - Molecular Weight - The molecular weight (formula weight) is the sum of the atomic weights of all the atoms in a molecule (molecular formula). Also called MW, formula weight, average molecular weight. Molecular Weight Distribution - The relative amounts of polymers of different molecular weights that comprise a given specimen of a polymer.