摘要
The solid-solid state coord ination reaction enthalpy of CaO w ith ascorb ic ac id has been determ ined by solution calorim e-try in an isoperibel reaction calorim eter at 298.2K.The calorim ietric solvent is 2mol/L HC l.A thermochem ical cyc le has been de-signed,and the standard Enthalpy of form ation for Ca(C6H7O6)2.4H2O(s) has been calcu lated.The recomm ended values of standard enthalpy of form ationΔfHΘm[Ca(C6H7O6)2.4H2O,s] is-3941.5kJ.
The solid -solid state coordination reaction enthalpy of CaO with ascothic acid has been determined by solution calorimetry in an isoperibel reaction calorimeter at 298.2K. The calorimietric solvent is 2mol/L HCL A thermoohemical cycle has been designed,and the standard Enthalpy of formation for Ca （C6H7O6）2·4H2O （s）has been calculated. The recommended values of standard enthalpy of formation ΔfHm^Θ [ Ca（ C6H7O6 ）2 · 4H2O,s] is - 3941.5kJ · mol ^-1.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2006年第3期288-291,共4页
Chemical Research and Application
基金
湖南省教育厅资助项目(03C091)
关键词
固相配合反应
氧化钙
抗坏血酸
热化学
标准生成焓
sdid -solid state coordination reaction
CaO
ascorbie acid
thermochemistry standard enthalpy of formation
