ジフェニルヒダントインナトリウムの過溶解度

抄録

The aqueous solution of diphenylhydantoin sodium does not easily precipitate out the crystals even in the state of supersaturation at temperatures below solid-liquid equilibrium. In a sealed tube, it was difficult to find the temperature at which the crystals precipitate out from the state of supersaturation. When such a solution is cooled under agitation in an unsealed vessel, reproducible results were obtained as to the temperature of crystal precipitation. The curve obtained by plotting such a temperature against the concentration of a solution was designated as the supersolubility curve, which was approximately parallel to the solubility curve.