Chemical News and Journal of Industrial Science, Tomy 117-118Chemical news office., 1918 |
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Strona 22
... material for vegetable oils comprises yearly throughout the world an aggregate of thirty million quintals of olives , and a similar quantity of linseed , four millions of hempseed , and five millions of rapeseed . THE WORLD . * IN ...
... material for vegetable oils comprises yearly throughout the world an aggregate of thirty million quintals of olives , and a similar quantity of linseed , four millions of hempseed , and five millions of rapeseed . THE WORLD . * IN ...
Strona 26
... material than has heretofore been possible . Predictions of the exhaustion of metalliferous deposits within a compara- tively short time are often erroneously made because the above factors and the probability of new discoveries are not ...
... material than has heretofore been possible . Predictions of the exhaustion of metalliferous deposits within a compara- tively short time are often erroneously made because the above factors and the probability of new discoveries are not ...
Strona 38
... materials , and calcium metasilicate is formed . Portland cement is a more complex material . The con- stitution of the clinker has been established by the brilliant investigations of the Geophysical Laboratory staff at Washington . The ...
... materials , and calcium metasilicate is formed . Portland cement is a more complex material . The con- stitution of the clinker has been established by the brilliant investigations of the Geophysical Laboratory staff at Washington . The ...
Strona 39
... material may be formed , retarding the further action of water . The silicates are hydrated much more slowly , the products being calcium hydroxide and an amorphous jelly of hydrated silicate . The hydroxide may be crystalline or ...
... material may be formed , retarding the further action of water . The silicates are hydrated much more slowly , the products being calcium hydroxide and an amorphous jelly of hydrated silicate . The hydroxide may be crystalline or ...
Strona 51
... material allowed . I hope that Prof. Goodman will correct me if I am wrong , as I write from memory . In practice the only apparatus of any value for deter- mining the setting time of cement is the Vicat needle- or one of its ...
... material allowed . I hope that Prof. Goodman will correct me if I am wrong , as I write from memory . In practice the only apparatus of any value for deter- mining the setting time of cement is the Vicat needle- or one of its ...
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