Nature, Volume 102Sir Norman Lockyer Macmillan Journals Limited, 1918 |
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Página 67
... acid or ammonia , and has provided herself with one of the essential munitions of war . So absolutely necessary is the production of nitric acid that , in its absence , no army could hold to- gether for a week under modern conditions ...
... acid or ammonia , and has provided herself with one of the essential munitions of war . So absolutely necessary is the production of nitric acid that , in its absence , no army could hold to- gether for a week under modern conditions ...
Página 240
... acid . The very slow action of concentrated sulphuric acid on steel is only accelerated to a moderate extent by dilution with several per cent . of water . For instance , 85 per cent . of acid has only a very slightly greater action ...
... acid . The very slow action of concentrated sulphuric acid on steel is only accelerated to a moderate extent by dilution with several per cent . of water . For instance , 85 per cent . of acid has only a very slightly greater action ...
Página 454
... acid , and so exert considerable influence on the inversely related changes of the hydroxyl - number in any body of water . The carbonic acid is also affected by the carbonates and bicarbonates brought into sea - water from the land or ...
... acid , and so exert considerable influence on the inversely related changes of the hydroxyl - number in any body of water . The carbonic acid is also affected by the carbonates and bicarbonates brought into sea - water from the land or ...
Índice
as a School Subject Prof T P Nunn 395 | 97 |
Bacteriology Applied Edited by Dr C H Browning | 104 |
Bengal and Bihar and Orissa Department of Fisheries for | 193 |
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