Chemical News and Journal of Industrial Science, Tom 7Chemical news office., 1863 |
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Strona 3
... known , that copper tubes , long used to con- duct lighting gas , have sometimes , during the cleansing of the interior , occasioned very dangerous and sudden explosions , occasionally proving fatal to the workmen . In one of the ...
... known , that copper tubes , long used to con- duct lighting gas , have sometimes , during the cleansing of the interior , occasioned very dangerous and sudden explosions , occasionally proving fatal to the workmen . In one of the ...
Strona 4
... known in chemistry for about thirty years . Between 1845 and 1850 I constantly worked on aniline to see what re- sults could be produced from it . In 1859 , or early in 1860 , I discovered the peculiar properties of aniline in combina ...
... known in chemistry for about thirty years . Between 1845 and 1850 I constantly worked on aniline to see what re- sults could be produced from it . In 1859 , or early in 1860 , I discovered the peculiar properties of aniline in combina ...
Strona 12
... ( known as pale yellow , & c . ) , be weighed , the exterior surface being previously dried , it will give about 3 per cent . more fat than really is present , owing , I presume , to the rosin retaining a small quantity of water . So that ...
... ( known as pale yellow , & c . ) , be weighed , the exterior surface being previously dried , it will give about 3 per cent . more fat than really is present , owing , I presume , to the rosin retaining a small quantity of water . So that ...
Strona 13
... known element . appears to have the character of A HEAVY METAL , form- ing compounds which are volatile below a red heat . It is reduced from its acid solutions by zinc in the form of a dense black powder , difficultly soluble in ...
... known element . appears to have the character of A HEAVY METAL , form- ing compounds which are volatile below a red heat . It is reduced from its acid solutions by zinc in the form of a dense black powder , difficultly soluble in ...
Strona 14
... known the and Kirchhoff had shown , beyond doubt , that , in study - metal as a metal , and who alone possesses it . ing natural products by spectrum analysis , it was pos- sible to discover traces of metals which ordinary analysis was ...
... known the and Kirchhoff had shown , beyond doubt , that , in study - metal as a metal , and who alone possesses it . ing natural products by spectrum analysis , it was pos- sible to discover traces of metals which ordinary analysis was ...
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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