Instruction in Chemical Analysis (quantitative.) |
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Page 4
... portion of the substance under investigation may be spilled , or some of it lost by decrepitation , or he may justly doubt the accu- racy of his weighing , or it may happen that two analyses of the same substance do not exactly agree ...
... portion of the substance under investigation may be spilled , or some of it lost by decrepitation , or he may justly doubt the accu- racy of his weighing , or it may happen that two analyses of the same substance do not exactly agree ...
Page 17
... portion of tinfoil , this tinfoil must be left re- maining upon the scale during the experiment , ) both scales are then equally loaded , say with about fifty grammes each , and if necessary , the balance is again adjusted ( by the ...
... portion of tinfoil , this tinfoil must be left re- maining upon the scale during the experiment , ) both scales are then equally loaded , say with about fifty grammes each , and if necessary , the balance is again adjusted ( by the ...
Page 24
... portions of the same substance are to be weighed , the united weight of the vessel and of its contents is first ... portion taken out of the vessel . 5. Substances liable to attract moisture from the air , must be weighed invariably ...
... portions of the same substance are to be weighed , the united weight of the vessel and of its contents is first ... portion taken out of the vessel . 5. Substances liable to attract moisture from the air , must be weighed invariably ...
Page 33
... portions in an agate mortar , until it is completely reduced to the state of an impalpa- ble powder . If we have but a small portion of a mineral to ope- rate upon , and , in fact , in all cases where we are desirous of avoid- ing loss ...
... portions in an agate mortar , until it is completely reduced to the state of an impalpa- ble powder . If we have but a small portion of a mineral to ope- rate upon , and , in fact , in all cases where we are desirous of avoid- ing loss ...
Page 44
... portion , or whether he must analyse several portions separately . Let us 44 [ § 15 . EXSICCATION .
... portion , or whether he must analyse several portions separately . Let us 44 [ § 15 . EXSICCATION .
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Instruction in Chemical Analysis (Quantitative.) C Remigius Fresenius,John Lloyd Bullock No preview available - 2015 |
Common terms and phrases
accurate results alumina ammonia amount analysis antimony apparatus arsenic acid barytes beaker-glass bismuth boiling bromine carbonate of ammonia carbonate of soda carbonic acid chloric acid chloride chloride of platinum chloride of silver chromium cobalt completely compound under examination contains converted crucible decomposed decomposition directed sub dissolved evaporation filtrate flask fluid filtered fused gentle heat glass grammes hydrated hydrochloric acid ignition insoluble in water latter likewise lime magnesia manganese mercury metallic method mixed mixture nickel nitrate nitric acid operation organic acids oxalate oxide oxide of chromium oxide of copper oxide of lead oxygen perchloride perfectly peroxide of iron phosphate phosphoric acid Plate porcelain portion powder precipitation as sulphuret proportion protochloride protoxide pure quantitative readily red heat residue rinsing sal ammoniac separation soluble solution strontia subsequently substance sulphate of barytes sulphuretted hydrogen sulphuric acid temperature tion tube vide volatile washed weighed whilst yields very accurate zinc