The Owens College Course of Practical Organic ChemistryMacmillan, 1887 - 200 σελίδες |
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Σελίδα 5
... nearly free from acetone , and , after purification with potash and lime , may also replace ethyl alcohol as a solvent . introducing a small piece of sodium , on adding more PURIFICATION OF ETHER . 5 PURIFICATION OF ETHER Pure ether.
... nearly free from acetone , and , after purification with potash and lime , may also replace ethyl alcohol as a solvent . introducing a small piece of sodium , on adding more PURIFICATION OF ETHER . 5 PURIFICATION OF ETHER Pure ether.
Σελίδα 9
... nearly constant boiling - point . If the vapour , which rises from the boiling liquid to be fractionated , undergoes slow cooling before reaching the condenser , the less volatile portion carried upwards with the more volatile vapour is ...
... nearly constant boiling - point . If the vapour , which rises from the boiling liquid to be fractionated , undergoes slow cooling before reaching the condenser , the less volatile portion carried upwards with the more volatile vapour is ...
Σελίδα 13
... hydrobromic acid fumes from the top of the condenser have nearly ceased . The product , * Denotes that the operation must be conducted in a draught cupboard or in the open air . which has a deep red colour , is allowed to BROMOBENZENE . 13.
... hydrobromic acid fumes from the top of the condenser have nearly ceased . The product , * Denotes that the operation must be conducted in a draught cupboard or in the open air . which has a deep red colour , is allowed to BROMOBENZENE . 13.
Σελίδα 14
... nearly pure bromobenzene . Small quantities of para - dibromo- benzene , which are formed in the above reaction , remain in the distilling flask , and solidify on cooling . This compound may be dissolved out with ether or warm alcohol ...
... nearly pure bromobenzene . Small quantities of para - dibromo- benzene , which are formed in the above reaction , remain in the distilling flask , and solidify on cooling . This compound may be dissolved out with ether or warm alcohol ...
Σελίδα 20
... nearly the whole of the tin has dissolved , the flask is transferred to the water - bath and heated for about half an hour . The liquid now con- tains no drops of oil and the smell of nitrobenzene should have disappeared . The contents ...
... nearly the whole of the tin has dissolved , the flask is transferred to the water - bath and heated for about half an hour . The liquid now con- tains no drops of oil and the smell of nitrobenzene should have disappeared . The contents ...
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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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