Chemical News and Journal of Physical Science, Tom 121Chemical news office., 1921 |
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Strona 7
... precipitate being weighed after drying at 110-115 ° C.- Journal Society Chemical Industry , June 15 , 1920 . A REVISION OF THE ATOMIC WEIGHT OF TIN . * By HENRY KREPELKA . We have determined in a new and more careful series of trials ...
... precipitate being weighed after drying at 110-115 ° C.- Journal Society Chemical Industry , June 15 , 1920 . A REVISION OF THE ATOMIC WEIGHT OF TIN . * By HENRY KREPELKA . We have determined in a new and more careful series of trials ...
Strona 14
... precipitate was formed , whereas , if the sodium silicate solution was strong , a gelatinous precipitate of silica was obtained . He found that by placing this clear solution in a small dish made of parchment , and floating it in water ...
... precipitate was formed , whereas , if the sodium silicate solution was strong , a gelatinous precipitate of silica was obtained . He found that by placing this clear solution in a small dish made of parchment , and floating it in water ...
Strona 15
... precipitate another colloid of opposite charge varies with the composition of the precipitating colloid . Biltz gives the following figures : 14 m.g. of gold is completely precipitated by : - 4 mgrms . of cerium oxide ; 3 mgrms . of ...
... precipitate another colloid of opposite charge varies with the composition of the precipitating colloid . Biltz gives the following figures : 14 m.g. of gold is completely precipitated by : - 4 mgrms . of cerium oxide ; 3 mgrms . of ...
Strona 24
... precipitate , alternative procedure for refrac- tory samples ; and the results of experimental determination of distillation procedure , effects of evolution of gas , possibility of retention of mer- cury by the charge , trial assay ...
... precipitate , alternative procedure for refrac- tory samples ; and the results of experimental determination of distillation procedure , effects of evolution of gas , possibility of retention of mer- cury by the charge , trial assay ...
Strona 28
... precipitate the caffeine con- tained in them ; a collector to retain the precipi- tated caffeine and soot ; and a draught regulator to control the rate of flow of the soot and gases through the collector so that it is not so fast that ...
... precipitate the caffeine con- tained in them ; a collector to retain the precipi- tated caffeine and soot ; and a draught regulator to control the rate of flow of the soot and gases through the collector so that it is not so fast that ...
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