摘要
利用差式扫描量热法,测定了硝基氯苯同分异构体二元及三元固液平衡 t—x关系。同时,利用表征分子特征的拓扑指标θ关联溶液的过量自由能 G^E。计算了二元及三元硝基氟苯同分异构体的固液平衡。G^E 方程式为G^E=RT 式中 k_(ij)为通过实验确定的两分子相互作用参数。上式计算值与实验值的偏差小于2K。
The binary and ternary solid-liquid equilibria (t-x) for nitrochlorobenzeneisomer systems had been determined by differential scanning calorimetry.Inaddition,using the equation of excess Gibbs energy G^E which was correlatedwith the topological index,the binary and ternary solid-liquid equilibria (t-x) for nitrochlorobenzene isomer systems were calculated.The G^E equation isG^E=RT where k_(ij) is an adjustabte parameter between two molecularity determinedby exeperiment.By this equation the maximum deviation between T_(cal) andT_(exp) is tess than 2K.
出处
《化学工业与工程》
CAS
1993年第2期1-8,共8页
Chemical Industry and Engineering
关键词
量热仪
固液平衡
硝基氯苯
differential scanning calorimeter
solid-liquid equilibrium
topological index
nitrochlorobenzene
