Chemical News and Journal of Physical Science, Tom 104Chemical news office., 1911 |
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Strona 3
... nitrogen was determined by the Kjeldahl method . Two grms . of berries were treated , and the analysis showed 0.01868 grm . of nitrogen , equivalent to 0.934 per cent . The Acids . The acid tests were made from the sugar extraction ...
... nitrogen was determined by the Kjeldahl method . Two grms . of berries were treated , and the analysis showed 0.01868 grm . of nitrogen , equivalent to 0.934 per cent . The Acids . The acid tests were made from the sugar extraction ...
Strona 5
... Nitrogen . = I'00775 . Guye and Drouginine have determined the atomic weight of nitrogen from analyses of weighed quantities of N2O4 ( Fourn . Chim . Phys . , viii . , 473 ) . A spiral of iron wire was heated electrically in the gas ...
... Nitrogen . = I'00775 . Guye and Drouginine have determined the atomic weight of nitrogen from analyses of weighed quantities of N2O4 ( Fourn . Chim . Phys . , viii . , 473 ) . A spiral of iron wire was heated electrically in the gas ...
Strona 10
... nitrogen . Dr. J. A. HARKER agreed that a substitute would have to be found for nitrogen , which was not inactive in the electric furnace . Helium was impracticable , but he thought argon promising . The difficulty was a suitable ...
... nitrogen . Dr. J. A. HARKER agreed that a substitute would have to be found for nitrogen , which was not inactive in the electric furnace . Helium was impracticable , but he thought argon promising . The difficulty was a suitable ...
Strona 11
... Nitrogen by Peat.-H. Woltereck . - The author treated peat with water vapour alone , and after the formation of ammonia was completed , and the amount of nitrogen had been determined , subjected the residue to the action of a mix- ture ...
... Nitrogen by Peat.-H. Woltereck . - The author treated peat with water vapour alone , and after the formation of ammonia was completed , and the amount of nitrogen had been determined , subjected the residue to the action of a mix- ture ...
Strona 21
... nitrogen and ammonia are liberated , and a phthalanil is produced ; for example : - CO - O 31 C6H4 CĂN NH CO.O C6H4 C : N C6H , + Na + NH3 . In the case of hydrazones two main reactions take place , resulting in the formation of an ...
... nitrogen and ammonia are liberated , and a phthalanil is produced ; for example : - CO - O 31 C6H4 CĂN NH CO.O C6H4 C : N C6H , + Na + NH3 . In the case of hydrazones two main reactions take place , resulting in the formation of an ...
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