【摘要】 本文用沸点法和静态法测定了N-甲基-2-吡咯烷酮(简称NMP)在29°～204℃时的饱和蒸气压(0.5～760mmHg)。并用不同数学模型进行了数据的拟合,求出最佳方程相应的参数,获得了满意的结果。并对各文献已发表的数据和关联式进行了评选。对两种测定方法进行了分析评价。更多还原

【Abstract】 The vapor pressures of NMP have been determined at 29°～204°c(0.5～760mmnHg) by the dynamic method (boiling point method) and the static method. The measured data have been fitted by means of varied mathematical models and the optimum parameters of the Antoine equation have been determined. The standard error of pressure is calculated to be 0.0027.The measured data have been also compared with the calculated values from other three equations proposed by different authors in literature and their standard errors of pressure are found to be 0.0224, 0.0306 and 0.0358 respectively. At the same time, the standard boiling points of NMP which were reported in some literature have been appraised.更多还原