The Owens College Course of Practical Organic ChemistryMacmillan, 1887 - 200 páginas |
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Página 20
... receiver . The flask is heated gently on a sand - bath . Steam is passed in from a second flask ( 4 ) containing water by a tube which reaches below the level of the liquid to be distilled . A straight vertical tube open at both ends ...
... receiver . The flask is heated gently on a sand - bath . Steam is passed in from a second flask ( 4 ) containing water by a tube which reaches below the level of the liquid to be distilled . A straight vertical tube open at both ends ...
Página 21
... receiver , the former as an almost colour- less oil . When no further condensation of oil is observed , the distillation is discontinued and the oil extracted from the distillate by shaking the liquid in a separating funnel two or three ...
... receiver , the former as an almost colour- less oil . When no further condensation of oil is observed , the distillation is discontinued and the oil extracted from the distillate by shaking the liquid in a separating funnel two or three ...
Página 22
... has been expelled and the liquid which passes over begins to solidify ( 280 ° ) . The condenser is now removed , the receiver changed and the distillation continued . * Care must 22 PRACTICAL ORGANIC CHEMISTRY . 97 V.
... has been expelled and the liquid which passes over begins to solidify ( 280 ° ) . The condenser is now removed , the receiver changed and the distillation continued . * Care must 22 PRACTICAL ORGANIC CHEMISTRY . 97 V.
Página 23
Julius Berend Cohen. receiver changed and the distillation continued . * Care must be taken , by keeping the neck of the retort warm , that it does not become choked . The acet- anilide which solidifies in the receiver has a yellow ...
Julius Berend Cohen. receiver changed and the distillation continued . * Care must be taken , by keeping the neck of the retort warm , that it does not become choked . The acet- anilide which solidifies in the receiver has a yellow ...
Página 32
... receiver . At first excess of acetic anhydride and some acetic acid pass over . The thermometer then rises rapidly and the portion distilling above 180 ° is collected in a separate vessel . At this point it is advisable to run the water ...
... receiver . At first excess of acetic anhydride and some acetic acid pass over . The thermometer then rises rapidly and the portion distilling above 180 ° is collected in a separate vessel . At this point it is advisable to run the water ...
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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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