Chemical News and Journal of Industrial Science, Tomy 121-122Chemical news office., 1920 |
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Strona 2
... obtained by Hunter were not even approximately obtained . It is very probable that he used a highly specialised form of charcoal . State of division is an important factor . Fine dusts offer a large resistance to a gas and in large ...
... obtained by Hunter were not even approximately obtained . It is very probable that he used a highly specialised form of charcoal . State of division is an important factor . Fine dusts offer a large resistance to a gas and in large ...
Strona 4
... obtained was recrystallised three times , and its solution was evaporated with a small quantity of potassium dichromate and twice distilled sulphuric acid . The bromine thus set free removed all iodine that may have been present . This ...
... obtained was recrystallised three times , and its solution was evaporated with a small quantity of potassium dichromate and twice distilled sulphuric acid . The bromine thus set free removed all iodine that may have been present . This ...
Strona 5
... obtained from it . About 10 grms . of metallic lead obtained from this speci- men was dissclved in pure nitric acid , and the lead nitrate was recrystallised several times and then converted into chloride by freshly distilled pure ...
... obtained from it . About 10 grms . of metallic lead obtained from this speci- men was dissclved in pure nitric acid , and the lead nitrate was recrystallised several times and then converted into chloride by freshly distilled pure ...
Strona 12
... obtained . MICA . Telephone No. 2248 Avenue . he Governors of the above Institute invite F. WIGGINS & SCNS 102/3/4 Minories , London , E The applications for the Post of ASSISTANT CHEMICAL LECTURER . Must have good Honours Degree ...
... obtained . MICA . Telephone No. 2248 Avenue . he Governors of the above Institute invite F. WIGGINS & SCNS 102/3/4 Minories , London , E The applications for the Post of ASSISTANT CHEMICAL LECTURER . Must have good Honours Degree ...
Strona 28
... obtained for it is pertinent . No market price has been thoroughly established for this article , because it varies greatly in caffeine content . Specimens recently examined in the Pharmaceutical Research Laboratories of the H. K. ...
... obtained for it is pertinent . No market price has been thoroughly established for this article , because it varies greatly in caffeine content . Specimens recently examined in the Pharmaceutical Research Laboratories of the H. K. ...
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