摘要
用改装了层析室的国产１０２Ｇ型气相色谱仪，在全部实验范围内水浴控温精度为士０．０１℃，用气液色谱法测量了环烷烃、环烯烃及芳烃分别在二苯甲烷、二苄醚、对苄基联苯、二苯亚矾四个溶剂构成的二十九个二元液系不同温度下的比保留体积值，计算了溶质溶解溶剂的溶解焓△Ｈ°ｓ，溶解吉布斯自由能△Ｇ°ｓ，溶解熵△Ｓ°ｓ的值，并用△Ｈ°ｓ的测量值与文献值［１］［２］对分子间的相互作用作了讨论。
The thermostat of the gas-liquid chromatograph is a well stirred liquid bath, in which the column temperature is to be kept within ±0.01℃. Gas-liquid chromatograph was used to measure specific volumes at different temperature. Twenty-nine binary systems were studied, 10 solutes (cyclohexane, cyclohexene, methylhexane, benzene, tolbenzene, p-xylene,m- xylene, o- xylene and styrene) in four solvents (diphenylmethane, dibenzylether, 4 -benzylbiphenyl, diphenylsulphoxide). The thermodynamic properties of solution (enthalpy △Hs°,entropy △Ss°,Gibbs free energy△Gs°, △Ss°of solution)of the solutes from gas phase to solvents were also determined and discussed.
关键词
溶解焓
溶解熵
溶质
多苯基溶剂
gas-liquid chromatograph
specific retention volume
enthalpy of solution
Gibbs free energy of solution
entropy of solution
