Chemical News and Journal of Industrial Science, Tomy 105-106Chemical news office., 1912 |
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Strona 3
... precipitate again allowed to settle , and the clear solution removed by a syphon . The precipitate was then filtered off , thoroughly washed with water , dissolved in hydrochloric acid , precipitated with ammonium hydrate after ...
... precipitate again allowed to settle , and the clear solution removed by a syphon . The precipitate was then filtered off , thoroughly washed with water , dissolved in hydrochloric acid , precipitated with ammonium hydrate after ...
Strona 12
... precipitate is obtained . If sodium is used the precipitate is Na3Bi ; it is insoluble in excess of sodium at the temperature of boiling paraffin , MEETINGS FOR THE WEEK . MONDAY , 8th . - Society of Chemical Industry , 8. " Production ...
... precipitate is obtained . If sodium is used the precipitate is Na3Bi ; it is insoluble in excess of sodium at the temperature of boiling paraffin , MEETINGS FOR THE WEEK . MONDAY , 8th . - Society of Chemical Industry , 8. " Production ...
Strona 17
... precipitate of the so - called humus bodies is formed . If this precipitate is separated by filtration , washed , and treated while still moist with boiling 95 per cent alcohol , a portion of the precipitate goes into solution . The ...
... precipitate of the so - called humus bodies is formed . If this precipitate is separated by filtration , washed , and treated while still moist with boiling 95 per cent alcohol , a portion of the precipitate goes into solution . The ...
Strona 25
... precipitate , with ammonia a yellow colour with scarlet streaks to a brown - yellow liquid , with lime- water yellow , green , and brown precipitates , with acetate of uranium a brown precipitate ; precipitates also with gelatin and ...
... precipitate , with ammonia a yellow colour with scarlet streaks to a brown - yellow liquid , with lime- water yellow , green , and brown precipitates , with acetate of uranium a brown precipitate ; precipitates also with gelatin and ...
Strona 32
... precipitate , which was sepa- | rated by filtration , washed with alcohol , suspended in alcohol , and treated with hydrogen sulphide . After separation from the lead sulphide the alcoholic solution was allowed to evaporate slowly ...
... precipitate , which was sepa- | rated by filtration , washed with alcohol , suspended in alcohol , and treated with hydrogen sulphide . After separation from the lead sulphide the alcoholic solution was allowed to evaporate slowly ...
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acetic acid action added alcohol alkali alloys aluminium ammonia ammonium amount analysis apparatus atom B.Sc barium boiling bromine calcium carbon cent cerium Chem chemical Chemistry chemists chloride chromium colour compounds containing copper creatinine crucible crystallises crystals decomposed decomposition described determined dilute dioxide dissolved effect electrolytic erbium ester ether evaporated excess experiments extract ferric filtered filtrate flask formaldehyde formation gives gliadin graphite heat hydrate hydrochloric acid hydrogen hydroxide insoluble iodide iodine iron liquid magnesium magnetic manganese matter melting melting-point mercury metal method methyl mgrm mineral mixture molecular molecules nitrate nitric acid nitrogen obtained organic oxalate oxide oxidised oxygen paper phenol platinum potassium precipitate prepared present Prof quantity radium reaction residue salts samarium samples scandium separated silica Society sodium sodium hydroxide soil soluble solution substance sulphate sulphide sulphuric acid temperature thorium tion tube vanadium washed weight yield yttrium zinc