论文部分内容阅读
用气液色谱法测量了在不同温度下C_1~C_4醇类的各种异构物在C_(16)~C_(23)正构烷烃、角鲨烷,和角鲨烯中的无限稀活度系数γ_i,偏摩尔过量焓、偏摩尔过量熵。在各种溶剂中γ_i、均大于1,在同一溶剂中γ_i依下列次序减小: 甲醇>乙醇>正丙醇>正丁醇; 正丙醇>异丙醇; 正丙醇>异丁醇>仲丁醇>叔丁醇同一种醇在角鲨烯中的γ_i较在角鲨烷中为低。异构醇类的低于正构醇类。所测的有随的增加而增加的趋势。
Gas-liquid chromatography was used to measure the infinitesimal activity of various isomers of C 1 -C 4 alcohols in C 16 C 23 hydroxyalkanes, squalane and squalene at different temperatures Coefficient γ_i, partial molar excess enthalpy, partial molar excess entropy. Γ_i in all solvents was greater than 1, γ_i decreased in the same solvent in the following order: methanol> ethanol> n-propanol> n-butanol; n-propanol> isopropanol; n-propanol> isobutanol> Sec-butanol> t-butanol The same type of alcohol has a lower γ_i in squalene than in squalane. Isomeric alcohols are less than normal alcohols. The measured increase with the increase of the trend.