醇类在苯及对二甲苯中过量焓预测  

PREDICTION OF EXCESS ENTHALPIES OF ALCOHOL AND BENZENE OR P-XYLENE

作　　者：裘利言[1] 姚惟馨[1] 

机构地区：[1]南京化工学院应用化学系

出　　处：《化学研究与应用》1996年第2期232-235,共4页Chemical Research and Application

摘　　要：醇类在苯及对二甲苯中过量焓预测裘利言，姚惟馨（南京化工学院应用化学系南京２１０００９）关键词醇，芳烃，缔合，过量焓含醇体系的热力学性质研究近来十分活跃。通常文献所报道的醇－芳烃体系中醇的摩尔分数ｘ＿Ａ在０．１～０．９，而对于极稀溶液区有关报道很少。这...With association equilibrium constants k_A from freezing point depression and Wiehe-Bagley model the excess enthaplies for alcohol and benzene or p-xylene are predicted. The enthalpy of hydrogen bond h_A increases as the carbon numbers n_A of alcohols increase and is a constant after propanol. For the same alcohol h_A is larger in benzene than in p-xylene. The change of molar enthalpies at infinite dilution has similar properdes to h_A There is a linear relationship between ln k_A and In h_A.

关 键 词：醇 芳烃 缔合 焓 苯 

分 类 号：O645.164[理学—物理化学]