NATRON VITRIOLATUM.

VlTRIOLATED NATRON.

Take of the Salt vvhich remains after thediftillation of the muriatic Acidtwo pounds.

K 2 DiftiHed

S A L T S. ig X

Diftilled Water two gallons.

Burn out the fuperüuous acid, with aftrong fire, in an open veflel; then boil it alittle while in the water ; ftrain and fet the H-quor afide to cryftalltze.

R E M A R K.

This neutral Salt, tb.t'Tartarum vitriolatum of'theformer Difpenfatory, is of all others moft difficultof folution, very little of it being taken up by coldwater. It is of a tafte moderately bitter, and hssbeen given to adults, in dofes of a fcruple or halfa dram, as a deobftruent; and, in dofes of four orfive drams, as a mild cathartic, which does notpafs off fo haftily as the Natron vitriolatum, and isfuppofed, by fome, to perform its office more com-pletely, as well as to extend its a&ion beyond theprimas viae.

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