“凝固点降低法测摩尔质量”实验改进研究

Improvement on Experiment for Determining Molar Mass by Freezing Point Fall Method

本文针对滨州学院凝固点降低法测定分子量实验进行了改进,采用无毒无污染的绿色化水-蔗糖体系代替苯-萘的体系,用带有乳胶头的玻璃管代替搅拌棒进行搅拌。分析了寒剂温度、环境温度对实验误差和消耗时间的影响。

In this paper,experiment for determining molecular weight by freezing point fall method of binzhou university was improved by water-sucrose system insteading of benzene-naphthalene system and latex glass tube head insteading of stir bar to agitate.The cold temperature and environment temperature on agent experimental error and consume time influence were analyzed.