EXPERIMENT VIII. About the slacking of Quick-lime in the Exhausted Receiver.
HAving conveyed an Evaporating Glass, with a sufficient Quantity of Water in it into the Receiver, when the Air was drawn out, we let down a piece of unslacked Lime into it, by the Assistance of the Turning-Key; and ob∣serv'd, that in about ¼ part of an Hour, the Lime began to slack violently, and at each Ex∣suction afforded very large Bubbles, which con∣tinued as long as we plyed the Pump; so that in a little time the whole inside of the Receiver was cover'd over with Lime Water, a great part of the Mixture boiling over into the Capacity of the Receiver; in which Experiment the Outside of the Vessel was considerably hot, and the Mixture continued its Heat near ¼ part of an Hour after the Receiver was removed: The Lime made use of in this Experiment was very strong.