Chemical News and Journal of Industrial Science, Tom 7Chemical news office., 1863 |
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Strona 10
... precipitate a brown colouring matter , which may be used as a pigment . The oil , after this treat- ment , is mixed with carbonate of potash and oxide of iron , introduced into an iron retort , and subjected to distillation , when a ...
... precipitate a brown colouring matter , which may be used as a pigment . The oil , after this treat- ment , is mixed with carbonate of potash and oxide of iron , introduced into an iron retort , and subjected to distillation , when a ...
Strona 12
... precipitate ; but in a few moments a grey precipitate of metallic silver appears . The change is thus represented- NaO , SO2 + AgO , NO , NaO , NO¿ + SO ̧ + Aq . Hyposulphite of soda , when treated as above , gives no permanent ...
... precipitate ; but in a few moments a grey precipitate of metallic silver appears . The change is thus represented- NaO , SO2 + AgO , NO , NaO , NO¿ + SO ̧ + Aq . Hyposulphite of soda , when treated as above , gives no permanent ...
Strona 15
... precipitate of this salt is formed when concentrated solu- tions of cyanide of potassium and of a salt of thallium are mixed . The sulphide of thallium obtained by precipitation is brownish black ; it resembles sulphide of lead . In ...
... precipitate of this salt is formed when concentrated solu- tions of cyanide of potassium and of a salt of thallium are mixed . The sulphide of thallium obtained by precipitation is brownish black ; it resembles sulphide of lead . In ...
Strona 16
... precipitate itself can even be entirely melted , in which case , the mother - waters can be decanted ; but then they generally have an intense red colour , especially if excess of tannin has been employed in the precipita- tion . It ...
... precipitate itself can even be entirely melted , in which case , the mother - waters can be decanted ; but then they generally have an intense red colour , especially if excess of tannin has been employed in the precipita- tion . It ...
Strona 27
... precipitate thus formed is composed chiefly of chloroplatinate of rubidium and a little potassium , which is got rid of by a few washings in boiling water , leaving very pure chloroplatinate of rubidium to be reduced The mixture is ...
... precipitate thus formed is composed chiefly of chloroplatinate of rubidium and a little potassium , which is got rid of by a few washings in boiling water , leaving very pure chloroplatinate of rubidium to be reduced The mixture is ...
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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