The Owens College Course of Practical Organic ChemistryMacmillan, 1887 - 200 páginas |
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Página 7
... brown or black colour to sulphuric acid it must be repeatedly shaken with about 20 per cent . of the acid until the latter becomes only slightly yellow on standing . This is done in a stoppered separating funnel , and after shaking for ...
... brown or black colour to sulphuric acid it must be repeatedly shaken with about 20 per cent . of the acid until the latter becomes only slightly yellow on standing . This is done in a stoppered separating funnel , and after shaking for ...
Página 17
... 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 . 17 III Nitrobenzene.
... 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 . 17 III Nitrobenzene.
Página 19
... brown residue contains a small quantity of dinitro- benzene . CH6 + HONO2 = CH5NO2 + H2O Nitrobenzene . Benzene The function of the sulphuric acid is that of a dehydrating agent , taking up the water formed in the reaction . Properties ...
... brown residue contains a small quantity of dinitro- benzene . CH6 + HONO2 = CH5NO2 + H2O Nitrobenzene . Benzene The function of the sulphuric acid is that of a dehydrating agent , taking up the water formed in the reaction . Properties ...
Página 32
... brown oily layer on the surface of the liquid . The aqueous portion is carefully separated and extracted with ether , the ether distilled , and the residue added to the other oil . The whole is mixed with an equal weight of acetic ...
... brown oily layer on the surface of the liquid . The aqueous portion is carefully separated and extracted with ether , the ether distilled , and the residue added to the other oil . The whole is mixed with an equal weight of acetic ...
Página 36
... brown foliated . crystals , which are separated from the mother - liquor and dried . NO C & HAN ( CH3 ) 2 + H2O = C6H40 p - Nitrosodimethylaniline NOH + NH ( CH3 ) , Nitrosophenol Dimethylamine . Properties . Brown foliated crystals ...
... brown foliated . crystals , which are separated from the mother - liquor and dried . NO C & HAN ( CH3 ) 2 + H2O = C6H40 p - Nitrosodimethylaniline NOH + NH ( CH3 ) , Nitrosophenol Dimethylamine . Properties . Brown foliated crystals ...
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TĂ©rminos y frases comunes
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 Hâ‚‚O 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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