Chemical News and Journal of Physical Science, Tom 121Chemical news office., 1921 |
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Strona 6
... cent . 3. Moisture content of a charcoal was increased by addition of lime , common salt , or potassium carbonate ... cent . Since iodine in KI solution exists as the ion 13 , and is removed to the extent of 80 per cent under the same ...
... cent . 3. Moisture content of a charcoal was increased by addition of lime , common salt , or potassium carbonate ... cent . Since iodine in KI solution exists as the ion 13 , and is removed to the extent of 80 per cent under the same ...
Strona 11
... cent over the corresponding month of 1919 , and of 12.3 per cent over the April , 1920 , figure . The imports were 116 millions , showing a percentage increase of 22.6 over the 1919 figure . Re - exports totalled 20 millions , an ...
... cent over the corresponding month of 1919 , and of 12.3 per cent over the April , 1920 , figure . The imports were 116 millions , showing a percentage increase of 22.6 over the 1919 figure . Re - exports totalled 20 millions , an ...
Strona 20
... cent of this cutting element , and a special alundum known as No. 38 contains more than 98 per cent aluminum oxide . Practically no magnetic iron oxide is present in these abrasives . Artificial aluminous abrasives are more efficient ...
... cent of this cutting element , and a special alundum known as No. 38 contains more than 98 per cent aluminum oxide . Practically no magnetic iron oxide is present in these abrasives . Artificial aluminous abrasives are more efficient ...
Strona 22
... cent . We mean by this that different men working on the same kind of machines and on the same work in the same shop will get one result , say 15 hours ' life , whereas other men under exactly the same conditions might get 30 hours ...
... cent . We mean by this that different men working on the same kind of machines and on the same work in the same shop will get one result , say 15 hours ' life , whereas other men under exactly the same conditions might get 30 hours ...
Strona 23
... cent on a 1 - grm , sample . As much of the world's supply of the metal is obtained from ores carrying less than 1 per cent mercury , a method that will quickly and accurately determine a variation of less than 1 mgrm . Hg is greatly to ...
... cent on a 1 - grm , sample . As much of the world's supply of the metal is obtained from ores carrying less than 1 per cent mercury , a method that will quickly and accurately determine a variation of less than 1 mgrm . Hg is greatly to ...
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