Chemical News and Journal of Industrial Science, Tomy 111-112Chemical news office., 1915 |
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Strona 2
... precipitate . We obtained 35 grms . of this material . The osazone , obtained by the use of phenylhydrazine and sodium acetate , indicated the Before making the test presence of glucose and fructose . the sugar solution was purified by ...
... precipitate . We obtained 35 grms . of this material . The osazone , obtained by the use of phenylhydrazine and sodium acetate , indicated the Before making the test presence of glucose and fructose . the sugar solution was purified by ...
Strona 42
... precipitate , so that Mr. Miner very kindly recovered this also for us , treating the precipitate with sodium hydroxide and extracting with hot water . From this lye , hydrogen sulphide precipitated a mixture of sulphides which ...
... precipitate , so that Mr. Miner very kindly recovered this also for us , treating the precipitate with sodium hydroxide and extracting with hot water . From this lye , hydrogen sulphide precipitated a mixture of sulphides which ...
Strona 43
... precipitate the dis- solved silver chloride , and the whole was filtered with the usual precautions on a carefully weighed Gooch - Munroe crucible with a mat of platinum sponge . The precipitate was dried to constant weight at about 180 ...
... precipitate the dis- solved silver chloride , and the whole was filtered with the usual precautions on a carefully weighed Gooch - Munroe crucible with a mat of platinum sponge . The precipitate was dried to constant weight at about 180 ...
Strona 53
... precipitate of normal tin tungstate , SnWO4 , is formed , which is changed to the blue oxide of tungsten , W205 , on the addition of concentrated hydrochloric acid . Mdivani added to the tungstate solu- From the Author's Ph.D. Thesis ...
... precipitate of normal tin tungstate , SnWO4 , is formed , which is changed to the blue oxide of tungsten , W205 , on the addition of concentrated hydrochloric acid . Mdivani added to the tungstate solu- From the Author's Ph.D. Thesis ...
Strona 54
... precipitate appeared . This rapidly dissolved in the excess of the reagent , the solution assuming a characteristic orange colour , due to the reduc- tion of the MoO3 to Mo203 . This is very different from the reaction which takes place ...
... precipitate appeared . This rapidly dissolved in the excess of the reagent , the solution assuming a characteristic orange colour , due to the reduc- tion of the MoO3 to Mo203 . This is very different from the reaction which takes place ...
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