Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3750Chemical news office., 1932 |
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Strona 129
... Black considered such speculation as unprofitable , " and Lavoisier drew nearer the truth when he regarded lime , magnesia , baryta and alumina as convenient elements . Wiegleb speaks of such substances as the False ( though useable ) ...
... Black considered such speculation as unprofitable , " and Lavoisier drew nearer the truth when he regarded lime , magnesia , baryta and alumina as convenient elements . Wiegleb speaks of such substances as the False ( though useable ) ...
Strona 131
... Black ( who commenced lecturing on Chemistry at Glasgow in 1756 ) , is detected in the following way : When heated it gives off a white smoke , and if placed on a very hot plate of iron , it will burn . It is evident from this that the ...
... Black ( who commenced lecturing on Chemistry at Glasgow in 1756 ) , is detected in the following way : When heated it gives off a white smoke , and if placed on a very hot plate of iron , it will burn . It is evident from this that the ...
Strona 136
... black amorphous powder , when viewed in bulk ; in the finely - ground condition it appeared to be brown , while in a thin layer on the microscope slide it appeared a yellowish - red by transmitted . light . It is sparingly soluble in ...
... black amorphous powder , when viewed in bulk ; in the finely - ground condition it appeared to be brown , while in a thin layer on the microscope slide it appeared a yellowish - red by transmitted . light . It is sparingly soluble in ...
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