Chemical News and Journal of Industrial Science, Tom 7Chemical news office., 1863 |
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Strona 2
... 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 be much nearer the truth . We speak of the gas ...
... 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 be much nearer the truth . We speak of the gas ...
Strona 6
... cent . of water and 70 per cent . of arsenic acid . The presence of water at the time of mixing is not absolutely essential to ensure success . " By the Lord Chief Justice Cockburn : We use water , because it is not so dangerous to the ...
... cent . of water and 70 per cent . of arsenic acid . The presence of water at the time of mixing is not absolutely essential to ensure success . " By the Lord Chief Justice Cockburn : We use water , because it is not so dangerous to the ...
Strona 9
... cent . of water , even when it has been well drained , and bog peat often contains very much more . Consequently , to obtain one ton of dry peat , five tons of material have to be dug and spread , and four tons of water have to be got ...
... cent . of water , even when it has been well drained , and bog peat often contains very much more . Consequently , to obtain one ton of dry peat , five tons of material have to be dug and spread , and four tons of water have to be got ...
Strona 12
... cent . of real soda in good hard soap . In estimating it directly by means of test acid , it is difficult to tell the precise moment when sufficient acid has been added . And it is evident that to be half per cent . wrong will make a ...
... cent . of real soda in good hard soap . In estimating it directly by means of test acid , it is difficult to tell the precise moment when sufficient acid has been added . And it is evident that to be half per cent . wrong will make a ...
Strona 18
... cent of bicarburetted hydrogen ( we leave the new process . aside the propylene ) , two tons may suffice for the pro- duction of a hectolitre of alcohol at 90 ° , if the whole of the carburetted hydrogen is properly employed . We submit ...
... cent of bicarburetted hydrogen ( we leave the new process . aside the propylene ) , two tons may suffice for the pro- duction of a hectolitre of alcohol at 90 ° , if the whole of the carburetted hydrogen is properly employed . We submit ...
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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