The Owens College Course of Practical Organic ChemistryMacmillan, 1887 - 200 páginas |
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Página ix
Julius Berend Cohen. CONTENTS . PART I. PURIFICATION OF ALCOHOL Absolute alcohol . Boiling - point determination Methylated spirit . . PURIFICATION OF ETHER Pure ether . Methylated ether . PURIFICATION OF BENZENE Pure benzene 50 per cent ...
Julius Berend Cohen. CONTENTS . PART I. PURIFICATION OF ALCOHOL Absolute alcohol . Boiling - point determination Methylated spirit . . PURIFICATION OF ETHER Pure ether . Methylated ether . PURIFICATION OF BENZENE Pure benzene 50 per cent ...
Página 3
... boiling liquid . BOILING - POINT DETERMINATION . - A correct determination of the boiling - point of a liquid is made with a standard ther- mometer , correction being made for barometric pressure , and , if necessary , for the thread of ...
... boiling liquid . BOILING - POINT DETERMINATION . - A correct determination of the boiling - point of a liquid is made with a standard ther- mometer , correction being made for barometric pressure , and , if necessary , for the thread of ...
Página 4
... boiling with 3-4 per cent . solid caustic potash on the water - bath with reflux condenser for an hour ( Fig . 2 ) , and then dis- tilling off on the water - bath . It is freed from water by distilling once or twice over fresh quicklime ...
... boiling with 3-4 per cent . solid caustic potash on the water - bath with reflux condenser for an hour ( Fig . 2 ) , and then dis- tilling off on the water - bath . It is freed from water by distilling once or twice over fresh quicklime ...
Página 8
... boiling - points lie widely apart . The more volatile liquid first passes over , the temperature suddenly rises , and the higher boiling liquid distils . Thus , in the separation of ethyl benzene ( p . 16 from its ethereal solution ...
... boiling - points lie widely apart . The more volatile liquid first passes over , the temperature suddenly rises , and the higher boiling liquid distils . Thus , in the separation of ethyl benzene ( p . 16 from its ethereal solution ...
Página 9
... boiling - point , and a portion of higher boiling - point , and the process is continued until certain of the fractions have a nearly constant boiling - point . If the vapour , which rises from the boiling liquid to be fractionated ...
... boiling - point , and a portion of higher boiling - point , and the process is continued until certain of the fractions have a nearly constant boiling - point . If the vapour , which rises from the boiling liquid to be fractionated ...
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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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