Chemical News and Journal of Industrial Science, Tomy 5-6Chemical news office., 1862 |
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Strona 6
... alkaline picrates to separate the acid , sulphuric ( and not as usually recommended , chlorhydric ) acid should be used , because a moderate excess of sul- phuric acid throws down a great portion of the acid which would otherwise remain ...
... alkaline picrates to separate the acid , sulphuric ( and not as usually recommended , chlorhydric ) acid should be used , because a moderate excess of sul- phuric acid throws down a great portion of the acid which would otherwise remain ...
Strona 87
... alkaline carbonate , or if the oxides are in solution , sulphide of ammonium . Tin from Lead . - Here again , fusion with a mixture of sulphur and alkaline carbonate gives the best results . It is easy to ascertain that the oxide of tin ...
... alkaline carbonate , or if the oxides are in solution , sulphide of ammonium . Tin from Lead . - Here again , fusion with a mixture of sulphur and alkaline carbonate gives the best results . It is easy to ascertain that the oxide of tin ...
Strona 186
... alkaline car- bonates , in an atmosphere of hydrogen , they are reduced to alkaline selinides ; from a solution of these latter a slow current of atmospheric air entirely precipitates the selenium . This process may serve for estimating ...
... alkaline car- bonates , in an atmosphere of hydrogen , they are reduced to alkaline selinides ; from a solution of these latter a slow current of atmospheric air entirely precipitates the selenium . This process may serve for estimating ...
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