Chemical News and Journal of Industrial Science, Volúmenes19-20Chemical news office., 1869 |
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Página 8
... tion : - ( CS ) " ) H2 N2 H2 Sulpho - carbamide Phenyl - sulphocarbamide ( CS ) " ) C6H5 N2 H3 ) The author concludes by predicting the formation of sulphur - urea by the action of heat on sulphocarbamate of ammonium . Such a reaction ...
... tion : - ( CS ) " ) H2 N2 H2 Sulpho - carbamide Phenyl - sulphocarbamide ( CS ) " ) C6H5 N2 H3 ) The author concludes by predicting the formation of sulphur - urea by the action of heat on sulphocarbamate of ammonium . Such a reaction ...
Página 10
... tion of potassium cyanate , oxybenzuraminic acid is formed , which , on cooling , separates in small crystals . The for- mation of this acid is shown by the following equation : -nitro - compound . It is described as a white crystalline ...
... tion of potassium cyanate , oxybenzuraminic acid is formed , which , on cooling , separates in small crystals . The for- mation of this acid is shown by the following equation : -nitro - compound . It is described as a white crystalline ...
Página 12
... tion of the grey precipitate first thrown down . Add 4 ounces of solution B. The brown - black precipitate formed must be just re - dissolved by the addition of more ammonia , as before . Add distilled water , until the bulk reaches 15 ...
... tion of the grey precipitate first thrown down . Add 4 ounces of solution B. The brown - black precipitate formed must be just re - dissolved by the addition of more ammonia , as before . Add distilled water , until the bulk reaches 15 ...
Página 58
... tion of the phospho - molybdate . One thing was clear from the necessary investigations were so tedious as to require these experiments , namely , that the presence of from the labour of two or three persons . He himself would be 2 to 3 ...
... tion of the phospho - molybdate . One thing was clear from the necessary investigations were so tedious as to require these experiments , namely , that the presence of from the labour of two or three persons . He himself would be 2 to 3 ...
Página 70
... tion of nitrogen has ceased , the acid solution is neutralised with ammonia , evaporated on the water - bath , and the acid liberated by adding chlorhydric acid . It crystallises in needles , and is readily soluble in hot water ...
... tion of nitrogen has ceased , the acid solution is neutralised with ammonia , evaporated on the water - bath , and the acid liberated by adding chlorhydric acid . It crystallises in needles , and is readily soluble in hot water ...
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acetic acetic acid action alcohol alkali ammonia amount analysis apparatus appears atomic becomes boiling bottle burning carbonic acid carbonic gas cent charcoal chemical Chemistry chemists chloric acid chloride coal colour combustion composition compounds containing copper coumarin crystallisation crystals decomposed decomposition dilute dissolved distillation electric ether experiments Faraday filter flame flask fluid furnace fuses gases give glass grammes graphite grms heat hydrochloric acid hydrogen hydrogenium ignition insoluble iodide iron lecture light lime liquid manufacture marble means mercury metal method mineral mixture nitrate nitric acid nitrogen observed obtained ordinary organic matter oxalic oxide oxidised oxygen palladium paper phosphate phosphorus platinum potash potassa potassium powder precipitate present produced Professor quantity Royal salt silicate silver Society soda sodium soluble solution specific gravity spectrum steel substance sugar sulphate sulphide sulphuric acid temperature tion titanic acid tube vapour vessel weight wire zinc zircons
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