Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3750Chemical news office., 1932 |
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Strona 132
... substance which will give its characteristic colour to the bead . Before leaving the latter half of the 18th century we must look at Organic analysis . Here , as we should expect , the development was slow ; the substances were mainly ...
... substance which will give its characteristic colour to the bead . Before leaving the latter half of the 18th century we must look at Organic analysis . Here , as we should expect , the development was slow ; the substances were mainly ...
Strona 133
... substance in solution . As Agricola says , we should first break it up with a hammer , then grind it in a mortar , and test its solubility in various acids . Agricola used vinegar , but we should more likely follow Boerhaave or Neumann ...
... substance in solution . As Agricola says , we should first break it up with a hammer , then grind it in a mortar , and test its solubility in various acids . Agricola used vinegar , but we should more likely follow Boerhaave or Neumann ...
Strona 144
... substances for use in pickling metal . Sir S. W. Royse & Company , Ltd. , 20 , Albert Square , Manchester . February 10 . TRI - RAD . 528,287 . - Chemical substances used in manufactures , photography or philosophical research , and ...
... substances for use in pickling metal . Sir S. W. Royse & Company , Ltd. , 20 , Albert Square , Manchester . February 10 . TRI - RAD . 528,287 . - Chemical substances used in manufactures , photography or philosophical research , and ...
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