Chemical News and Journal of Industrial Science, Tomy 103-104Chemical news office., 1911 |
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Strona 13
... precipitate , while the barium chloride obtained by evaporating the solution had lost almost the whole of its power of emitting y - rays . But while the precipitate lost almost all its power of radiation with a half - constant of about ...
... precipitate , while the barium chloride obtained by evaporating the solution had lost almost the whole of its power of emitting y - rays . But while the precipitate lost almost all its power of radiation with a half - constant of about ...
Strona 16
... precipitate first formed had re - dissolved ( 8 grms . NaOH ) , and then acid again with citric acid ( 15 grms . ) . The following additional remarks may be made regarding the use of the electrodes . When it was necessary to clean them ...
... precipitate first formed had re - dissolved ( 8 grms . NaOH ) , and then acid again with citric acid ( 15 grms . ) . The following additional remarks may be made regarding the use of the electrodes . When it was necessary to clean them ...
Strona 28
... precipitate of silica , alumina , & c . , is filtered off , washed with ammonium carbonate water , and is saved for further determinations . The solution . containing all the fluorine and traces of silica , phosphate , & c . , is ...
... precipitate of silica , alumina , & c . , is filtered off , washed with ammonium carbonate water , and is saved for further determinations . The solution . containing all the fluorine and traces of silica , phosphate , & c . , is ...
Strona 29
... precipitate is dried on filter - paper and ignited separately from it in a weighed platinum crucible , to which the ash of the filter - paper is afterwards added . The precipitate consists of Al2O3 , Fe2O3 , and Mn2O3 , and is weighed ...
... precipitate is dried on filter - paper and ignited separately from it in a weighed platinum crucible , to which the ash of the filter - paper is afterwards added . The precipitate consists of Al2O3 , Fe2O3 , and Mn2O3 , and is weighed ...
Strona 30
... precipitate if desired ) . The solution still containing the manganese and cobalt is transferred to an Erlenmeyer flask fitted for passing in H2S , as before described , and 3 cc . strong ammonia is added . H2S is passed through for ...
... precipitate if desired ) . The solution still containing the manganese and cobalt is transferred to an Erlenmeyer flask fitted for passing in H2S , as before described , and 3 cc . strong ammonia is added . H2S is passed through for ...
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