Abstract

This acid is prepared by digesting larch-bark in water at 80° C., evaporating the infusion at the same temperature to the consistence of syrup, and distilling it in vessels of glass, porcelain, or silver ; i. e . of a material not liable to be attacked by the acetic acid present in the infusion. The larixinic acid distils over, and partly crystal­lizes on the inner surface of the receiver, but chiefly remains dis­solved in the distilled liquid, which, after being concentrated by cautious evaporation, deposits the impure acid in form of crystals.

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