Chemical News and Journal of Industrial Science, Volumen33Chemical news office, 1876 |
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Página 7
... treated the subject with a thoroughness and precision which were unattainable by me , owing 2 n a Let be the fraction representing the comparative b lengths of the columns , then the quantity of the sub- stance in the longer one may be ...
... treated the subject with a thoroughness and precision which were unattainable by me , owing 2 n a Let be the fraction representing the comparative b lengths of the columns , then the quantity of the sub- stance in the longer one may be ...
Página 13
... treat- ment of chlorisatin by the hydrate of potash , he prepared mono - chlor - aniline -- aniline , that is , in which one atom of hydrogen was replaced by chlorine . This body was a base , like aniline itself . Hofmann established ...
... treat- ment of chlorisatin by the hydrate of potash , he prepared mono - chlor - aniline -- aniline , that is , in which one atom of hydrogen was replaced by chlorine . This body was a base , like aniline itself . Hofmann established ...
Página 14
... treated with freshly precipitated oxide of silver , is decomposed with the formation of an oxide of the " organic metal possessing the main features of potash . This train of investigation has not as yet been adequately pursued ; but ...
... treated with freshly precipitated oxide of silver , is decomposed with the formation of an oxide of the " organic metal possessing the main features of potash . This train of investigation has not as yet been adequately pursued ; but ...
Página 18
... treated with sulphuric acid at 4 ° to 5 ° B. , and then heated in a stove to 125 ° to 140 ° , is disintegrated . This method was patented by M. Frézon . M. Joly , instead of sulphuric acid , uses a solution of the hydrochlorate of ...
... treated with sulphuric acid at 4 ° to 5 ° B. , and then heated in a stove to 125 ° to 140 ° , is disintegrated . This method was patented by M. Frézon . M. Joly , instead of sulphuric acid , uses a solution of the hydrochlorate of ...
Página 29
... treated was the photographing of the solar and metallic spectra . Mr. Rutherford , of New York , who has produced some of the finest photographs of spectra extant , has shown that to obtain clear photographs the smallest possible ...
... treated was the photographing of the solar and metallic spectra . Mr. Rutherford , of New York , who has produced some of the finest photographs of spectra extant , has shown that to obtain clear photographs the smallest possible ...
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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.
Página 34 - JOSEPH GILLOTT'S STEEL PENS. Sold by all Dealers throughout the World, /Chemical Technology, or Chemistry in its *~/ Applications to the Arts and Manufactures. By THOMAS RICHARDSON and HENRY WATTS.