. Journal. ned cork, which must bewater-tight. This portion of the apparatus is then placed, neckdownward, over a large glass jar in which stands anarrow cylinder filled with water. The cylinder isto be in such a position that the end of the funnel-tube will dip into the liquid contained in the cylinder. Through the centre of the bottom, which was cutoff the bottle, a hole of at least jf of an inch indiameter is drilled. The bottom is then put into itsoriginal position on the bottle and fastened bygluing strips of paper over the joint. The hole inthe bottom is loosely closed by a cork through
. Journal. ned cork, which must bewater-tight. This portion of the apparatus is then placed, neckdownward, over a large glass jar in which stands anarrow cylinder filled with water. The cylinder isto be in such a position that the end of the funnel-tube will dip into the liquid contained in the cylinder. Through the centre of the bottom, which was cutoff the bottle, a hole of at least jf of an inch indiameter is drilled. The bottom is then put into itsoriginal position on the bottle and fastened bygluing strips of paper over the joint. The hole inthe bottom is loosely closed by a cork through whichpasses a thermometer. When the oxidising chamberis thus completed the cork is removed, and by meansof a funnel, having a long bent tube, water pouredinto the space between the walls of the bottle andthe flower-pot, until its level is within a short dis-tance from the upper edge of the funnel within theflower-pot. Then a tube connected with a carbonicacid generator is inserted into the hole and carbonic. (/) Funnel filled with P.(t) Thermometer,(jo) ) Gassjar.(tc) Water,to) Bent glass tube,(s) Perforated stopper(c) Tin pan, acid gas passed into the oxidising chamber. Whenthe air within has been entirely displaced by the gas,sticks of phosphorus are dropped through the hole intothe funnel until the latter is nearly filled. The thermo-meter and cork, in the sides of which a few notcheshave been cut, are then placed into position and theapparatus allowed to stand for about twenty-fourhours. If at the end of this time the temperature ofthe P is below 35° C, a little more ventilation maybe given by enlarging the notches in the cork. 576 THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. [Oct. 29. 1885. The flower-pot in this apparatus performs the samefunction as is fulfilled in the former by the clothlining—namely, that of absorbing the water andmoistening the air. The acid which is formed runsfirst into the small cylinder and thence into the glassjar which serves a
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
