Chemical News and Journal of Physical Science, Tom 105Chemical news office., 1912 |
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Strona 1
... melt or volatilise boron in a carbon crucible or arc as it was changed into carbon boride , and concluded that boron passed from the solid to the gaseous state without becoming liquid . Dr. Weintraub has not only obtained boron in a ...
... melt or volatilise boron in a carbon crucible or arc as it was changed into carbon boride , and concluded that boron passed from the solid to the gaseous state without becoming liquid . Dr. Weintraub has not only obtained boron in a ...
Strona 2
... melted and agglomerated boron is extreme hardness . It comes next to the diamond in hardness , a splinter easily scratching corundum . Its fracture is conchoidal , and when melted no decided crystalline structure is seen . The ...
... melted and agglomerated boron is extreme hardness . It comes next to the diamond in hardness , a splinter easily scratching corundum . Its fracture is conchoidal , and when melted no decided crystalline structure is seen . The ...
Strona 3
... melted aluminium is lower than the above , due probably to the fact that a certain proportion of iron and silicon are taken up during melting , and also to the fact that gases are absorbed while molten . The value found for the density ...
... melted aluminium is lower than the above , due probably to the fact that a certain proportion of iron and silicon are taken up during melting , and also to the fact that gases are absorbed while molten . The value found for the density ...
Strona 5
... melting and boiling points . The corrected tem- perature differences were used in calculating 3 . The errors due to the slight expansion of the stop D and the piston P were found to be negligible by varying the length of these two parts ...
... melting and boiling points . The corrected tem- perature differences were used in calculating 3 . The errors due to the slight expansion of the stop D and the piston P were found to be negligible by varying the length of these two parts ...
Strona 7
... melting - point , crystalline appearance , solubility , & c . , of the compound obtained and the compound sought has been deemed sufficient to establish its identity . The compounds obtained have been classified and described according ...
... melting - point , crystalline appearance , solubility , & c . , of the compound obtained and the compound sought has been deemed sufficient to establish its identity . The compounds obtained have been classified and described according ...
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