wlK-^s,

Chap. XIV. Of Alcohol, Ether, $c.

465

Pour the alcohol into a glass retort, capable of sustaining asudden heat, and add to it the acid, in an uninterrupt-ed stream. Mix them by degrees, shaking them gentlyand frequently, and instantly distil from sand, previouslyheated for the purpose, into a receiver kept cool with wateror snow. The heat must also be so managed, that the li-quor shall boil as soon as possible, and continue to boil tillsixteen ounces are drawn off, when the retort is to be re-moved from the sand.

To the distilled liquor add two drachms of potass, and distilfrom a very high retort, with a very gentle heat, into a coolreceiver, until ten ounces have been drawn off.

If sixteen ounces of alcohol be poured upon the acid remain-ing in the retort after the first distillation, and the distilla-tion be repeated, more Ether will be obtained; and thismay be repeated several times.

Dub.Take of

Sulphuric ethereal liquor, twenty ounces, by measure;

Subcarbonate of kali, dried and powdered, two drachms.Mix them and distil, with a very gentle heat, twelve ounces,

by measure, from a very high retort into a cooled receiver.Its specific gravity is 765, water being 1000.

Lond.

Take of

Iiettified spirit,

Sulphuric acid, of each one pound and a half.

Put the spirit into a glass retort, and gradually add to it theacid, shaking them frequently, and taking care that thetemperature, during the mixture, do not exceed 120° Fahr.

Then cautiously place the retort in a sand-bath, previouslyheated to 200°, so that the liquor may boil as quici.ly aspossible, and the ether may be distilled over into a tubula-ted receiver, to which a vessel, cooled with snow or ice, isfitted. Continue the distillation until a heavier fluid beginto come over, which is seen in the bottom of the receiver,below the ether.

Pour twelve ounces more of rectified spirit upon the liquorremaining in the retort, and repeat the distillation of etherin the same manner.

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