摘要
采用“固定冷浴温度、局部过冷、密封样品管、机械搅拌”的方法进行溶剂或溶液凝固点测量 ,与传统方法相比 ,它具有操作简单、结果准确、重现性好的优点 .以苯作溶剂、萘为溶质进行了多次测定 .结果表明 ,萘摩尔质量测定的相对误差均在 1
In this paper, a method of determination of the freezing point with “a ice water bath of lower and unchanged temperature, lower cold in part, airtight tube, stirring with a machinery” is reported. Compared with the conventional method, it is easy to operate and the result is precise. The result shows that the relative error of determination of naphthalene molar mass is not much as 1%.
