. Practical methods of organic chemistry . Fig. 82. Fig. 83. safety wash-bottle (Fig. 83) ; this latter is always used, sinceotherwise, with an irregular gas current, the liquid to be saturatedmay be easily drawn back into the wash-bottle and then into thegenerating mixture. In place of a WoulrT-flask with three tubu-lures, a single-neck wash-bottle may be converted into a safety-bottle as follows (see Fig. 84) : Into a two-hole cork place astraight tube as wide as possible; through this insert a narrowdelivery tube, bent at a right angle, which reaches almost to thebottom of the bottle. The l
. Practical methods of organic chemistry . Fig. 82. Fig. 83. safety wash-bottle (Fig. 83) ; this latter is always used, sinceotherwise, with an irregular gas current, the liquid to be saturatedmay be easily drawn back into the wash-bottle and then into thegenerating mixture. In place of a WoulrT-flask with three tubu-lures, a single-neck wash-bottle may be converted into a safety-bottle as follows (see Fig. 84) : Into a two-hole cork place astraight tube as wide as possible; through this insert a narrowdelivery tube, bent at a right angle, which reaches almost to thebottom of the bottle. The liquid to be saturated cannot flow back into the wash-bottle with this arrangement, since in case there should be atendency to do so, air would enter the suction-flask through thespace between the delivery tube and the wider tube, thus relieving HYDROBROMIC ACID 345 the pressure. If a wash-bottle having a side-tube is available, itcan also be converted into a safety-tube (see Fig. 85).
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