Chemical News and Journal of Industrial Science, Volumen33Chemical news office, 1876 |
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Página 6
... determination or the fat . I am sometimes called upon to analyse not only the sample left with me by the inspector , but also that left with the dealer , who is naturally anxious to know the result quickly instead of remaining in ...
... determination or the fat . I am sometimes called upon to analyse not only the sample left with me by the inspector , but also that left with the dealer , who is naturally anxious to know the result quickly instead of remaining in ...
Página 11
... determinations I found that the colours of the liquids might be compared immediately after the The colours did not addition of sulphuretted hydrogen . become intensified on standing . I also found that it was immaterial whether the ...
... determinations I found that the colours of the liquids might be compared immediately after the The colours did not addition of sulphuretted hydrogen . become intensified on standing . I also found that it was immaterial whether the ...
Página 12
... determination was made had been opened four weeks previously ; as it was only half full and was merely provided with a common cork , the permanence of the solution may be considered sufficient for most purposes . Peroxide of hydrogen ...
... determination was made had been opened four weeks previously ; as it was only half full and was merely provided with a common cork , the permanence of the solution may be considered sufficient for most purposes . Peroxide of hydrogen ...
Página 14
... determination of the differences by which they were discriminated from their nitrogen analogues . We have here presented to us the first example of a diatomic base formed by the action of bro- mide of ethylene or triethyl - phosphine ...
... determination of the differences by which they were discriminated from their nitrogen analogues . We have here presented to us the first example of a diatomic base formed by the action of bro- mide of ethylene or triethyl - phosphine ...
Página 27
... determination requiring more than ordinary skill as anything out of the common run crops up , or if a quan- is required , they are at sea : in many cases they get out of the difficulty by sending the analysis on to some one more skilled ...
... determination requiring more than ordinary skill as anything out of the common run crops up , or if a quan- is required , they are at sea : in many cases they get out of the difficulty by sending the analysis on to some one more skilled ...
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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.