反应焓变的测定是普通化学、无机化学教学的常规实验。实验用量热计大致可分为两种类型：即保温杯型［２～５］和烧杯夹泡沫塑料绝热型［５～７］；采用的搅拌方法则有手握量热计摇动搅拌［１］、手握玻璃棒（或下端加环）上下移动或转动搅拌［２，３］、电动搅拌机搅拌或电磁 Determination of enthalpy change is a routine experiment in normal chemistry and inorganic chemistry teaching. Experimental calorimeters can be roughly divided into two types: insulation cup type [2 ~ 5] and beaker foam insulation [5 ~ 7]; the use of the mixing method is the hand calorimeter shaking stirring [1] , Holding the glass rod (or the lower end of the ring) up and down move or turn stirring [2,3], electric mixer stirring or electromagnetic