Chemical News and Journal of Industrial Science, Volumen33Chemical news office, 1876 |
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Resultados 1-5 de 92
Página 8
... connection with the com- mercial analysis of soda ash , which have not been touched upon by your correspondents , there is one of some im- portance , namely , that of filtering the solutions before testing . It is evident that any ...
... connection with the com- mercial analysis of soda ash , which have not been touched upon by your correspondents , there is one of some im- portance , namely , that of filtering the solutions before testing . It is evident that any ...
Página 9
... connection with the transaction . But just a word or two in reference to it . It would be interesting to know whether or not it was a sample of " cream " caustic soda , and , if so , whether it was the very same identical bottle sample ...
... connection with the transaction . But just a word or two in reference to it . It would be interesting to know whether or not it was a sample of " cream " caustic soda , and , if so , whether it was the very same identical bottle sample ...
Página 13
... connection , from which ( although in various side - paths he has made truly inte- resting discoveries ) he has never essentially deviated . Indeed these researches may be considered as constituting one great and prolonged research on ...
... connection , from which ( although in various side - paths he has made truly inte- resting discoveries ) he has never essentially deviated . Indeed these researches may be considered as constituting one great and prolonged research on ...
Página 14
... connection with Hofmann's previous work . " To estimate the value of these results it is necessary to go through the vast mass of experimental evidence from which they are deduced , which constitutes a body of complete and exact ...
... connection with Hofmann's previous work . " To estimate the value of these results it is necessary to go through the vast mass of experimental evidence from which they are deduced , which constitutes a body of complete and exact ...
Página 19
... connection with the Society had lasted for thirty - three years , and it was in great part to his unceasing and zealous efforts that the present prospe- rity of the Institution is due . To very many of the members he was well known ...
... connection with the Society had lasted for thirty - three years , and it was in great part to his unceasing and zealous efforts that the present prospe- rity of the Institution is due . To very many of the members he was well known ...
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Términos y frases comunes
action alcohol alizarin alkali ammonia ammonium amount analysis aniline aniline-black anthracen apparatus bilirubin biliverdin blue body boiling bromine calcium carbonic acid caustic cent Chemical Society chemistry chemists chlorate chloride compound condensation containing cooling copper crystallisation cyanide cyanogen decomposed dilute dissolved distilled dyeing effect electricity employed ether evaporation examination experiments filtered furnace gases give glass grain graphite grms heat hydrate hydrochloric acid hydrogen Improvements insoluble Institution iodine iron kilos light lime liquid London machine manganese manufacture means mercury metal meteorites method mixture nitrate nitric acid nitrogen observed obtained oxide oxidised oxygen paper passed phosphate phosphoric acid platinum potash potassium precipitate present produced Prof proportion pure quantity reaction researches residue Royal salt sample selenium silver soda sodium soluble solution substance sugar sulphate sulphide sulphuric acid temperature tion tube vanadium vapour whilst yield zinc
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Página 131 - The apparatus was fitted up in a room specially devoted to it, and was protected on all sides, except where the rays of light had to pass, with cotton-wool and large bottles of water. A heliostat reflected a beam of sunlight in a constant direction, and it was received on an appropriate arrangement of slit, lenses, prisms, &c., for projecting a pure spectrum.
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