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A Text-Book of Volumetric Analysis: With Special Reference to the Volumetric ...
Henry William Schimpf
No preview available - 2013
acidulated added AgNOa V. S. albumen alcohol alkali alkaloids ammonia ammonium atoms beaker blue color boiling bottle bromine burette calcium cent chloroform crystallized decinormal solution dichromate diluted dissolved distilled water estimated ether evaporated excess ferric filter filtrate flask following equation glass HaSO4 heated hydrochloric acid hydrogen indicator iodine iodine V. S. KOH V. S. liberated liquid litmus litre metallic iron method methyl-orange mixed mixture molecular weight neutralize nitric acid normal solution number of cc oxalic acid oxalic acid V. S. oxidizing oxygen pepsin phenol phenolphthalein phosphate potassium chromate potassium hydroxide potassium iodide potassium permanganate precipitate pure salt quantity reaction reagent red color residue silver nitrate silver nitrate V. S. sodium carbonate sodium chloride sodium thiosulphate solu soluble specific gravity standard solution starch T. S. stopper substance sulphate sulphuric acid temperature tion titration total solids tube urine V. S. represents volume weight in grammes
Page 325 - English measures, we may determine the total solids by multiplying the last two figures of the specific gravity by the number of fluid ounces of urine passed, for these last two figures represent approximately the grains of solid matter in a fluid ounce.
Page 278 - C., for six hours, and shake it gently every fifteen minutes. At the expiration of this time the albumen should have disappeared, leaving at most only a few, thin, insoluble flakes. (Trustworthy results, particularly in comparative trials, will be obtained only if the temperature be strictly maintained between the prescribed limits, and if the contents of the flasks be agitated uniformly, and...
Page 302 - ... filter. When the liquid has drained off, wash the residue, as before, until the second filtrate measures 150 cc, and finally collect about 20 cc more of a third filtrate. Evaporate carefully in a tared dish, first, the second filtrate to a small volume, then add the first filtrate, rinsing the vessels with the third filtrate, and continue the evaporation until the residue weighs 14 grm.
Page 81 - USP acid contains 68 per cent., by weight, of absolute nitric acid and 32 per cent, of water.
Page 106 - A solution of mercuric chloride containing 13 '55 grms. to the litre, 1 cc =0'1 grm. Hg. The process is founded on the fact that, if a solution of mercuric chloride be added to one of potassic iodide, in the proportion of one of the former to four of the latter, mercuric iodide is formed, and immediately dissolved, until the balance is overstepped, when the red colour is developed ; the final reaction is very sharp, and with solutions properly made is very accurate. The mercuric...
Page 307 - ... should weigh not less than 12 parts, and of which not over 10 per cent. should be soluble in ether.
Page 304 - USP process, not less than 5 per cent. of total alkaloids, and at least 2.5 per cent. of quinine (CMHMN2O2+ H,0 ; 341.3).
Page 302 - ... minutes, and return the whole to the filter. When the liquid has drained off, wash the residue, as before, until the second filtrate measures 150 cc, and finally collect about 20 cc more of a third filtrate. Evaporate...
Page 314 - The beaker is again weighed and the milk taken got by difference. It is of importance to take up the whole of the milk from the beaker, as I am disposed to consider the paper has a selective action, removing the watery constituents of the milk by preference over the fat.