Chemical News and Journal of Industrial Science, Tom 7Chemical news office., 1863 |
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Strona 1
... portion of vegetable substances are composed only of hydrogen , carbon , and oxygen ; but , nevertheless , we cannot form any of those substances from these elements . This powerlessness of chemistry has often rendered results doubtful ...
... portion of vegetable substances are composed only of hydrogen , carbon , and oxygen ; but , nevertheless , we cannot form any of those substances from these elements . This powerlessness of chemistry has often rendered results doubtful ...
Strona 2
... portion of bicarburetted hydrogen may be from 8 to 12 per cent .; but under the conditions in which the manu- facture now takes place , we consider these figures as much too high , and believe that 3 or 4 per cent . at the utmost would ...
... portion of bicarburetted hydrogen may be from 8 to 12 per cent .; but under the conditions in which the manu- facture now takes place , we consider these figures as much too high , and believe that 3 or 4 per cent . at the utmost would ...
Strona 4
... portion of water which is not driven off ? -Witness : Yes , exactly . chemical combination ? -Witness : Yes . Lord Chief Justice Cockburn : That is , it retains it in * By Mr. Bovill : The portion of water driven off in boiling It is ...
... portion of water which is not driven off ? -Witness : Yes , exactly . chemical combination ? -Witness : Yes . Lord Chief Justice Cockburn : That is , it retains it in * By Mr. Bovill : The portion of water driven off in boiling It is ...
Strona 5
... portion of its oxygen , which is superadded to the arsenious acid , and then we get arsenic acid . The water driven off in boiling is not that which enters into chemical combination - it is water of solution or in mixture . Lord Chief ...
... portion of its oxygen , which is superadded to the arsenious acid , and then we get arsenic acid . The water driven off in boiling is not that which enters into chemical combination - it is water of solution or in mixture . Lord Chief ...
Strona 9
... portion of its cost results from the labour of collecting the dry peat and bringing it to the place where it is to be used . Herein lies one of the greatest difficul- ties of employing peat on any very extensive scale . What- 9 ever ...
... portion of its cost results from the labour of collecting the dry peat and bringing it to the place where it is to be used . Herein lies one of the greatest difficul- ties of employing peat on any very extensive scale . What- 9 ever ...
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according action added alcohol ammonia amount aniline apparatus appears application arsenic acid become bismuth bodies boiling called carbon cent CHEMICAL chemistry chloride coal colour combination communication compound considered consists containing continued copper corresponding described dissolved distillation effect employed evaporated examined experiments extract fact give given heat hydrochloric hydrogen important Improvements iron known lead less light lime liquid London manufacture manure mass material matter means metal method mineral mixed mixture nature necessary nitric Notices observed obtained operation ordinary oxide oxygen passed patent peat plants platinum portion potash practical precipitate prepared present produced proportion pure quantity reference regard remains remarkable ROYAL salt scientific separated silver Society soda soluble solution steel Street substances sufficient sulphuric acid temperature thallium tion treated tube vapour weight