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To Purify Ether

Ordinary ether hol. Distill until & of the whole has passed is purified by first agitating it with 2 or 3 times over; agitate the distillate with a little water its volume of distilled water containing a few to separate the ether, and preserve the heavier grains of carbonate of potassa, or a few drops portion. It has a specific gravity of 1.112; of milk of lime; and, after decantation, again its vapor is explosive when strongly heated, agitated with a like quantity of water only. consequently great care is necessary in the This may be used for inhalations. The washed distillation, to keep the heat down to the lowether is afterwards digested on chloride of cal- est working point, and to distill only small cium to deprive it of retained moisture. quantities at a time. (Millon.) (Sec directions