2-butyn-1-01 hydrochloride was added 40 ml. of distilled water (not quite enough water to dissolve it). The mixture was neutralized to pH 13, which required about 25 ml. of 10 N sodium hydroxide, and was extracted with diethyl ether in a continuous extractor. A water layer formed below the ether layer. The water was removed from this layer by azeotropic distillation with benzene. The residue solidified as it cooled to room temperature. The ...