摘要
描述了用自动绝热量热计测定有机物质纯度的原理、装置和实验数据处理方法。所用量热计曾用量热标准物质标定,验证了其可靠的工作性能。为加速样品的熔化,改进了原量热计中的样品容器,其主要特点是加热器均匀地分布在量热容器中。用一些多元醇的纯度测定为例说明了纯度分析时各种实验数据的处理方法。
The principle,apparatus and treatment of cxperimcntal data in calorimetric
measurement of purity were described.An automated adiabatic calorimeter,reliability of which was examined by the measurement of heat capacity of α-Al_2O_3,was used to determine the purities of some of polybasic alcohols.A new type of calorimeter sample cell was constructed to melt rapidly the samples.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
1990年第4期41-46,共6页
Journal of Northwest University（Natural Science Edition）
基金
国家自然科学基金资助课题
关键词
有机化合物
纯度
量热法
Measurement of methods purity
Calorimeters
Polyalcohols
