Chemical News and Journal of Industrial Science, Tom 12Chemical news office., 1865 |
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Strona 18
... becomes red in less than a minute when the gas contains no more than 1 grain of ammonia in 100 cubic feet . ( e ) BISULPHIDE OF CARBON ( CS , ) .- This compound is almost invariably present in coal gas , and it is no doubt formed in the ...
... becomes red in less than a minute when the gas contains no more than 1 grain of ammonia in 100 cubic feet . ( e ) BISULPHIDE OF CARBON ( CS , ) .- This compound is almost invariably present in coal gas , and it is no doubt formed in the ...
Strona 21
... becomes of the image ? It disappears from sight , but an invisible thermograph remains , and it is only the peculiar constitution of our eyes that disqualifies us from seeing the picture formed by the calorific rays . " Before a ...
... becomes of the image ? It disappears from sight , but an invisible thermograph remains , and it is only the peculiar constitution of our eyes that disqualifies us from seeing the picture formed by the calorific rays . " Before a ...
Strona 24
... becomes covered with a very thin coating of gold ; but if it be placed in dilute nitric acid ( one part of acid sp . gr . 12 and sixteen parts of water ) the layer of gold peels off the zinc , but remains fast adherent to the platinum ...
... becomes covered with a very thin coating of gold ; but if it be placed in dilute nitric acid ( one part of acid sp . gr . 12 and sixteen parts of water ) the layer of gold peels off the zinc , but remains fast adherent to the platinum ...
Strona 25
... becomes deeper from concentration , and the uric acid precipitated will therefore take up a larger proportion of colouring matter than it would do in a very pale and dilute urine . The uric acid obtained from concentrated urine is also ...
... becomes deeper from concentration , and the uric acid precipitated will therefore take up a larger proportion of colouring matter than it would do in a very pale and dilute urine . The uric acid obtained from concentrated urine is also ...
Strona 26
... become cold , 50 grains ' measure of hydrochloric acid , of specific gravity 111 , being added to the evaporated residue ... becomes of a dark or brown - sherry colour ; this , by prolonged boiling of the mixture , gradually disappears ...
... become cold , 50 grains ' measure of hydrochloric acid , of specific gravity 111 , being added to the evaporated residue ... becomes of a dark or brown - sherry colour ; this , by prolonged boiling of the mixture , gradually disappears ...
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acetic action alcohol ammonia amount analysis animal apparatus appear application atoms becomes bismuth bodies boiling called carbonic acid cause cent chemical Chemistry chloride coal colour combination communication complete composition compounds considerable constituent containing continued copper corresponding course described determined dissolved distillation effect elements employed equal ether examined existence experiments fact force give given glass glucose heat hydrochloric hydrogen important Improvements interest iron known lead lecture less light lime liquid manufacture matter means mercury metal method mineral mixed mixture molecules nature nitrogen notice observed obtained operation ordinary organic oxide oxygen pass practical precipitate prepared present produced proportion proved pure quantity received remains residue salts separated soda sodium amalgam solution substance sulphuric acid temperature tion tube vapour volume weight