CuNaAsO₄热力学性质的再研究

CuNaAsO 4 热力学性质的再研究 THE FURTHER STUDIES ON THERMODYNAMIC PROPERTIES OF CuNaAsO 4 刘训亭 Liu Xunting Hu Qishan Qu Jinglian Wang Cunxin Huang Yingjun Zhang Zhonghai Qu Songsheng 1 first-author 胡启山 1 屈景年 1 汪存信 1 黄应军 1 张忠海 1 屈松生 1 武汉大学化学系 武汉大学化学系 Department of Chemistry,Wuhan University Department of Chemistry,Wuhan University 用溶解量热法,以1.498×10 -1 mol·L -1 HCl 溶液为量热溶剂,设计了一个新的热化学循环,用新型的具有恒定温度环境的反应热量计,测定了 CuNaAsO 4 ·1（1/2）H 2 O 在298.K 时的标准生成焓,并推荐其值为-1 469.33 kJ·mol -1 The standard enthalpy of formation of CuNaAsO 4 was determined by solution calorimetry in an new model isoperibel reaction calorimeter.The calorimetric solvent is a acid solution consisting of 1.498×10 -1 mol·L -1 HCI,a new thermochmical cycle was designed to determine the enthalpy.Accoding to the results obtained,the value Δ H CuNaAsO 4 ·1 （1/2）H 2 O 298.2 K =-1 469.33 kJ·mol -1 was reconmmended. CuNaAsO4 标准生成焓 热化学 CuNaAsO4 standard enthalpy of formation thermochemistry O642.3 国家自然科学基金资助的课题 1993-06-01 2021-04-01 6