The Owens College Course of Practical Organic ChemistryMacmillan, 1887 - 200 σελίδες |
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Σελίδα 3
... temperature is indicated by a thermometer inserted through the cork in one limb of a T - piece a , the other end of which is fitted vertically into the flask . The side limb is bent through a small angle and passes into the inner tube ...
... temperature is indicated by a thermometer inserted through the cork in one limb of a T - piece a , the other end of which is fitted vertically into the flask . The side limb is bent through a small angle and passes into the inner tube ...
Σελίδα 8
... temperature suddenly rises , and the higher boiling liquid distils . Thus , in the separation of ethyl benzene ( p . 16 from its ethereal solution , the ether ( B. P. 35 ° ) distils off almost completely at the temperature of the water ...
... temperature suddenly rises , and the higher boiling liquid distils . Thus , in the separation of ethyl benzene ( p . 16 from its ethereal solution , the ether ( B. P. 35 ° ) distils off almost completely at the temperature of the water ...
Σελίδα 9
... temperature lower than that indicated in the first in- stance , so that it is possible in this way to subdivide FIG . 3 . Distilling apparatus with Würtz's fractionating column . each fraction into a portion of lower boiling - point ...
... temperature lower than that indicated in the first in- stance , so that it is possible in this way to subdivide FIG . 3 . Distilling apparatus with Würtz's fractionating column . each fraction into a portion of lower boiling - point ...
Σελίδα 17
... temperature does not exceed 40 ° —50 ° by immersing the flask , if necessary , in cold water . The nitrobenzene separates out as a brown , oily layer on the surface of the acid C liquid . When the acid has all been added - NITROBENZENE ...
... temperature does not exceed 40 ° —50 ° by immersing the flask , if necessary , in cold water . The nitrobenzene separates out as a brown , oily layer on the surface of the acid C liquid . When the acid has all been added - NITROBENZENE ...
Σελίδα 19
... temperature then rises , and the nitrobenzene distils at 204 ° —207 ° , and is separately collected . The brown residue contains a small quantity of dinitro- benzene . CH6 + HONO2 = CH5NO2 + H2O Nitrobenzene . Benzene The function of ...
... temperature then rises , and the nitrobenzene distils at 204 ° —207 ° , and is separately collected . The brown residue contains a small quantity of dinitro- benzene . CH6 + HONO2 = CH5NO2 + H2O Nitrobenzene . Benzene The function of ...
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50 grms absolute alcohol acetic acid action aldehyde allyl ammonia ammonium anhydrous aniline aromatic Assistant-Master atom benzaldehyde benzene benzoic acid benzoyl chloride benzyl boiling calcium chloride Cambridge caustic potash caustic soda chloroform cold colour colourless compound conc containing cooling Crown 8vo crystals decomposes dilute dissolved distilled ELEMENTARY ethylene bromide evolution Extra fcap fatty Fcap Fellow of Trinity Fifty grms filtered filtrate Fittig formed fumes Globe 8vo glycerin Greek grms H₂O heated hot water hundred grms hydrochloric acid hydrogen iodide John's College late Fellow layer litre capacity LL.D mesitylene mixture nitric acid oxalic acid Pharm phenol phosphorus Phys potassium carbonate potassium cyanide powdered Prep PREPARATION PRIMER Professor Properties.-Colourless liquid purified reaction reflux condenser residue retort revised round-bottomed flask salt School separated slowly added small quantity soda solution sodium solidifies soluble in water sulphuric acid temperature Trinity College tube vessel washed water-bath
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