正丁醇-正十六烷的固液相平衡与正丁醇的自缔合  

Solid Liquid Phase Equilibria for n Butanol+ n Hexadecane and Self Association of n Butanol

作　　者：车冠全[1] 彭文烈[1] 古喜兰[1] 黄钟奇[1] 云逢存[1] 

机构地区：[1]中山大学化学系

出　　处：《中山大学学报（自然科学版）》1997年第4期49-52,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金

摘　　要：测制了正丁醇—正十六烷的固液平衡相图，属简单低共熔混合物类相图．计算出体系在２９８．１５Ｋ的摩尔过量吉布斯自由能ＧＥｍ，其最大值为１７８３Ｊ·ｍｏｌ－１．用Ｗｉｅｈｅ－Ｂａｇｌｅｙ（ＷＢ）模型进行处理，得到正丁醇的自缔合常数ＫＡ，２９８．Melting temperatures have been measured and the solid liquid phase diagram was constructed for n butanol+n hexadecane. It is a simple eutectic system. Excess molar Gibbs free energies at 298.15 K were calculated. The largest value of G E m is 1 783 J·mol -1 . The data was treated with Wiehe Bagley association model combining with a Hildebrand Scatchard term. The self association constants K As have been calculated, and the value of K A at 298.15 K for n butanol in n hexadecane is 118.

关 键 词：固液平衡 正丁醇 自缔合 溶液热力学 正十六烷 

分 类 号：O645.164[理学—物理化学]