The Owens College Course of Practical Organic ChemistryMacmillan and Company, 1892 - 200 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
50 grms absolute alcohol acetic acid action alcohol and ether aldehyde alkaline allyl ammonia ammonium anhydride anhydrous aniline aqueous solution aromatic atom benzaldehyde benzene benzoic acid benzyl benzyl chloride boiling calcium chloride caustic potash caustic soda solution chloroform cold water colour colourless compound conc contained cooling crystalline mass crystals decomposes dilute dissolved distilled easily soluble ethylene bromide evolution extracted with ether fatty Fifty grms filtered filtrate Fittig formed fraction glycerin grms H₂O heated hot water hundred grms hydrochloric acid hydrogen iodide layer litre capacity mesitylene mixture needles nitric acid nitrobenzene Pharm phenol phosphorus Phys portion potassium carbonate potassium cyanide powdered precipitate Prep PREPARATION Properties.-Colourless liquid reaction readily reflux condenser residue retort round-bottomed flask salt sand-bath separates shaken slowly added small quantity smell sodium solidifies soluble in alcohol soluble in water sulphuric acid tap funnel temperature thermometer tube vessel washed water-bath yellow
Δημοφιλή αποσπάσματα
Σελίδα 31 - ... heated four or five hours at 170°. The gas which escaped on opening the tubes was found to contain no methyl chloride. The excess of acid was driven off on the water bath, and the residue distilled with plumbic hydrate until the distillate was no longer alkaline. The ammoniacal distillate was caught in hydrochloric acid, and evaporated to dryness on the water bath. The residue was treated with a small quantity of absolute alcohol, and the filtered solution again evaporated to dryness. There...
Σελίδα 74 - Special care must be taken that the temperature of the liquid does not exceed 10° C.
Σελίδα 158 - ... from a funnel, the neck of which is drawn out into a fine tube, so that two layers are formed. The whole is allowed to stand at the ordinary temperature, till after some little time the liquid becomes homogeneous. The contents of several (six) such cylinders are slowly evaporated on...
Σελίδα 102 - The distilling flask is now attached to a long condenser and heated on the water-bath. The ether, which distils, still contains traces of alcohol and water, which it obstinately retains and from which it can only be freed by a further treatment with metallic sodium. A few very thin slices of sodium are dropped into the receiver and the vessel closed with a cork, through which...
Σελίδα 61 - ... decomposition taking place. This liquid was then redistilled near the same temperature. The liquid base thus prepared has a curious smell closely resembling that of Bewad's triethylhydroxylamine. Its general properties agree very closely with the diethyl- and dipropyl-hydroxylamines. It is soluble in water and miscible in all proportions with alcohol and ether ; the aqueous solution is strongly alkaline to litmus, and fumes in contact with hydrochloric acid. It reacts with solutions of copper...
Σελίδα 177 - This reaction has been made the basis of a quantitative method for determining the number of methoxyl-groups ( - OCH3) present in a compound.