无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
1999年
5期
689-692
,共4页
胡军成%万洪文%许名飞%望天志%屈松生
鬍軍成%萬洪文%許名飛%望天誌%屈鬆生
호군성%만홍문%허명비%망천지%굴송생
复盐%碘酸盐%量热法%热化学
複鹽%碘痠鹽%量熱法%熱化學
복염%전산염%량열법%열화학
double salt iodate calorimetry thermochemistry
The standard enthalpy of formation (ΔfH(-○m)[K2Zn(IO3)4·2H2O,s,298.2K]=-2210.68 kJ·mol-1) of a double salt K2Zn(IO3)4·2H2O is determined by solution calorimetry in a isoperibel reaction calorimeter. The calorimetric solvent is an acid solution consisting of 3 mol·L-1 HNO3. Accoding to the HESS Law, we designed a rational thermochemical cycle. Simultaneously, the ΔfH(-○m)298.2K was calculated from the data of the DSC curve. The values obtained by the two methods were compared.
