Chemical News and Journal of Industrial Science, Tomy 119-120Chemical news office., 1919 |
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Strona 18
... considerable error through incomplete evolution or collection of the radium emanation . 2. Source of the Radium Emanation . The radium employed as a source of emanation was part of that produced in the co - operative work of the U.S. ...
... considerable error through incomplete evolution or collection of the radium emanation . 2. Source of the Radium Emanation . The radium employed as a source of emanation was part of that produced in the co - operative work of the U.S. ...
Strona 20
... considerable amounts of yttrium , as is indicated by the relatively low average atomic weight of the earths in these fractions . The last fractions , however , consist chiefly of yttrium , mixed with small amounts of cerium and ...
... considerable amounts of yttrium , as is indicated by the relatively low average atomic weight of the earths in these fractions . The last fractions , however , consist chiefly of yttrium , mixed with small amounts of cerium and ...
Strona 32
... Considerable interest has been shown of late in the fibre known as " pochote ' in Mexico and " Java kapok " in the United States . This product bas been known and used by the natives of Mexico for many years . NOTICES OF BOOKS . The ...
... Considerable interest has been shown of late in the fibre known as " pochote ' in Mexico and " Java kapok " in the United States . This product bas been known and used by the natives of Mexico for many years . NOTICES OF BOOKS . The ...
Strona 33
... considerable advances in our knowledge of the chemistry of natural dyes have been made since 1874 , and a complete account of the results of modern researches will be of great value to investigators and students . The natural colouring ...
... considerable advances in our knowledge of the chemistry of natural dyes have been made since 1874 , and a complete account of the results of modern researches will be of great value to investigators and students . The natural colouring ...
Strona 37
... considerable amounts of oxalates at the same time . Use of H2O2 . - Since H2SO4 and H3PO4 are generally employed in the manufacture of H2O2 it was necessary for our purpose to make use of H2O2 which was found to be practically free from ...
... considerable amounts of oxalates at the same time . Use of H2O2 . - Since H2SO4 and H3PO4 are generally employed in the manufacture of H2O2 it was necessary for our purpose to make use of H2O2 which was found to be practically free from ...
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