Chemical News and Journal of Industrial Science, Tomy 103-104Chemical news office., 1911 |
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Strona 4
... containing oxygen , sulphur , and nitrogen . Such com- pounds , however , occur in small volumes as compared with ... contain hydrocarbons of series CnH2n - 2 from C14H26 to C19H36 . These hydrocarbons are characteristic of oil from ...
... containing oxygen , sulphur , and nitrogen . Such com- pounds , however , occur in small volumes as compared with ... contain hydrocarbons of series CnH2n - 2 from C14H26 to C19H36 . These hydrocarbons are characteristic of oil from ...
Strona 13
... containing mesothorium . As in the case I have mentioned a useless preparation was sold with the best in- tentions , there is also the danger of deliberate adulteration . The simplest way to test a radium preparation for meso- thorium ...
... containing mesothorium . As in the case I have mentioned a useless preparation was sold with the best in- tentions , there is also the danger of deliberate adulteration . The simplest way to test a radium preparation for meso- thorium ...
Strona 16
... containing both Copper and Zinc . - In Table IV . two experiments solutions were analysed containing both copper and zinc , the identical method being employed which was used for these metals singly . tion of zinc by evaporating down on ...
... containing both Copper and Zinc . - In Table IV . two experiments solutions were analysed containing both copper and zinc , the identical method being employed which was used for these metals singly . tion of zinc by evaporating down on ...
Strona 28
... containing Fluorine . In an enamel containing fluorine the usual methods for silicates cannot be used , as silicon - tetrafluoride would be volatilised in the evaporation with hydrochloric acid for the separation of the silica ...
... containing Fluorine . In an enamel containing fluorine the usual methods for silicates cannot be used , as silicon - tetrafluoride would be volatilised in the evaporation with hydrochloric acid for the separation of the silica ...
Strona 29
... containing only a trace of iron the manganese may be determined in the solution from the pyrosulphate fusion . A freshly pre- pared solution of potassium ferricyanide is added to oxidise the manganese , then the solution is made ...
... containing only a trace of iron the manganese may be determined in the solution from the pyrosulphate fusion . A freshly pre- pared solution of potassium ferricyanide is added to oxidise the manganese , then the solution is made ...
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