A technique for determining the molecular weight of a solute by dissolving a known quantity of it in a solvent and recording the amount by which the freezing point of the solvent drops.

• 冰点测定一种确定某种溶质分子量的方法，将一定数量的该溶质溶于某一溶剂中并记录使该溶剂的凝固点下降时的数量