精密滴定量热计的改进及联机

LKB8700精密量热系统的滴定量热计是用于常量的量热测定,反应器是进口的玻璃容器。加热器、温度计、滴定管均装在反应器内,不便装样和清洗,滴定液进口只有一个,三种液体的混合只能分步滴定,热敏电阻随温度的变化用惠斯登电桥测量。针对快速反应手动跟踪较为困难这一情况,特别是为了研究油田应用的油-水-表面活性剂三元体系或多元体系,我们设计和建立了图1所示不锈钢制反应器,并在桥路输出中与微机相联接(图2),实

AN IMPROVED AND ON-LINE TITRATION CALORIMETER

LKB8700 precision titration calorimeter has been improved and equipped with a microcomputer in our laboratory, which can be operated conveniently and automatically. Error analysis of titration calorimetry suggests that experiments can be performed accurately. The improved and on-line calorimeter is especially suitable for investigation of oil-water-surfactant systems which are directly related to the enhanced oil recovery. The calorimetric system has been checked by means of measuring heat of dilution and heat of reaction of Tris (Trihydroxymethylaminomethane) with HCl. The result (-47.46 J·mol~(-1)) obtained agrees well with the literature's value.