Chemical News and Journal of Physical Science, Tom 121Chemical news office., 1921 |
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Strona 6
... quantities ; also , laboratory class work could not be interfered with . 4. Porosity of a mass of charcoal dust was increased by mixing with solid ammonium bichromate and beating out of air . The efficiency against gases was increased ...
... quantities ; also , laboratory class work could not be interfered with . 4. Porosity of a mass of charcoal dust was increased by mixing with solid ammonium bichromate and beating out of air . The efficiency against gases was increased ...
Strona 8
... quantity of potassium dichromate and twice distilled sulphuric acid . The bromine thus set free removed all iodine ... quantities in a platinum crucible . From this remelted bromide bromine was set free by means of an amount of potassium ...
... quantity of potassium dichromate and twice distilled sulphuric acid . The bromine thus set free removed all iodine ... quantities in a platinum crucible . From this remelted bromide bromine was set free by means of an amount of potassium ...
Strona 15
... quantity of electrolytes present , and also upon the composition of the disperse medium in which they are suspended as the disperse phase . Thus , silicic acid is charged positively when in water , and negatively when in turpentine ...
... quantity of electrolytes present , and also upon the composition of the disperse medium in which they are suspended as the disperse phase . Thus , silicic acid is charged positively when in water , and negatively when in turpentine ...
Strona 19
... quantity to meet the ever increasing needs of industry . Abrasives . In general , there are two types of abrasive - aluminous and silicon carbide , the for- mer consisting essentially of aluminum oxide , and the latter of a chemical ...
... quantity to meet the ever increasing needs of industry . Abrasives . In general , there are two types of abrasive - aluminous and silicon carbide , the for- mer consisting essentially of aluminum oxide , and the latter of a chemical ...
Strona 22
... quantity exported from the United States during the current season falls short of the available surplus , so that stocks at the end of this period will be greater than those held last year . Canada reports an area under wheat 17 per ...
... quantity exported from the United States during the current season falls short of the available surplus , so that stocks at the end of this period will be greater than those held last year . Canada reports an area under wheat 17 per ...
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