The Owens College Course of Practical Organic ChemistryMacmillan, 1887 - 200 páginas |
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Página 21
... extracted from the distillate by shaking the liquid in a separating funnel two or three times with small quantities ( 50 c.c. ) of ether . The ethereal solution . separated as far as possible from water is further A B FIG . 12 ...
... extracted from the distillate by shaking the liquid in a separating funnel two or three times with small quantities ( 50 c.c. ) of ether . The ethereal solution . separated as far as possible from water is further A B FIG . 12 ...
Página 27
... extracted two or three times with chloroform , which dissolves it , forming a deep red layer at the bottom of the vessel . This is carefully separated . On distilling off the chloroform on the water - bath a red oil remains , which is ...
... extracted two or three times with chloroform , which dissolves it , forming a deep red layer at the bottom of the vessel . This is carefully separated . On distilling off the chloroform on the water - bath a red oil remains , which is ...
Página 30
... extracted with small quantities of dilute hydrochloric acid , the acid solution somewhat concentrated , whereby a small quantity of unchanged dinitrobenzene separates , and filtered . Conc . ammonia added to the filtrate pre- cipitates ...
... extracted with small quantities of dilute hydrochloric acid , the acid solution somewhat concentrated , whereby a small quantity of unchanged dinitrobenzene separates , and filtered . Conc . ammonia added to the filtrate pre- cipitates ...
Página 31
... extracted with dilute hydrochloric acid , and the filtered solution treated with conc . ammonia . In this way a further quantity of nitraniline may be obtained . NO , CH1 ( NO2 ) 2 + 3NH ̧HS = C6H4NH2 + 3NH3 + 3S + 3H2O Dinitrobenzene ...
... extracted with dilute hydrochloric acid , and the filtered solution treated with conc . ammonia . In this way a further quantity of nitraniline may be obtained . NO , CH1 ( NO2 ) 2 + 3NH ̧HS = C6H4NH2 + 3NH3 + 3S + 3H2O Dinitrobenzene ...
Página 32
... extracted with ether , the ether distilled , and the residue added to the other oil . The whole is mixed with an equal weight of acetic anhydride , which causes a considerable rise of temperature and con- verts the aniline 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 anhydride , which causes a considerable rise of temperature and con- verts the aniline and ...
Otras ediciones - Ver todas
Términos 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 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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