Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
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Strona 1
... probably be preferable to any other if it did not require the use of silver crucibles , which are rather strongly attacked by caustic alkalis in a fused state . Another disadvantage is that only a very moderate heat can be used with ...
... probably be preferable to any other if it did not require the use of silver crucibles , which are rather strongly attacked by caustic alkalis in a fused state . Another disadvantage is that only a very moderate heat can be used with ...
Strona 2
... probably form complex compounds , boro - tantalates , boro - niobates , & c . Therefore its employment in the present state of our know- ledge on these points does not seem advisable . as METHOD NO . 3. - Treating with Hydrofluoric Acid ...
... probably form complex compounds , boro - tantalates , boro - niobates , & c . Therefore its employment in the present state of our know- ledge on these points does not seem advisable . as METHOD NO . 3. - Treating with Hydrofluoric Acid ...
Strona 3
... probably , become so firmly united to the tantalic - niobic acids that their separation becomes a matter of extreme difficulty . Berzelius recommended that the washed tantalic - niobic acids should be digested with ammonium sulphide to ...
... probably , become so firmly united to the tantalic - niobic acids that their separation becomes a matter of extreme difficulty . Berzelius recommended that the washed tantalic - niobic acids should be digested with ammonium sulphide to ...
Strona 7
... probably unnecessary in the case of aliphatic compounds , the following experiment will show that the operation is not useless in the case of re- fractory aromatic compounds . An alcoholic solution of hexachloro - benzene was boiled for ...
... probably unnecessary in the case of aliphatic compounds , the following experiment will show that the operation is not useless in the case of re- fractory aromatic compounds . An alcoholic solution of hexachloro - benzene was boiled for ...
Strona 9
... Probably no better example than this could be cited to show the text - book tendency to supply a complete explana- tion of a well - known phenomenon , the underlying causes of which are still imperfectly understood . Although the above ...
... Probably no better example than this could be cited to show the text - book tendency to supply a complete explana- tion of a well - known phenomenon , the underlying causes of which are still imperfectly understood . Although the above ...
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