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用自行设计的双温度沸点计,测定了碳酸二甲酯在14°～97℃和2,3—二氯丙烯在17°～94℃的饱和蒸汽压。实验数据分别用两个三参数蒸汽压方程进行了关联。(1)碳酸二甲酯: (1a) lgP_((mmHg))=7.3089-1413.0/(228.90+t(℃))(Antoine Equation),计算值与实验值的平均百分偏差为0.25%; (1b) lgP_((KPa))=5.7698-10012.4/T_((K))~(1.3377)平均百分偏差为0.26%。(2) 2,3—二氯丙烯: (2a) lgP_((mmHg))=6.4468-976.42/(180.37+t(℃))(Antoine Equation),平均百分偏差为0.33%; (2b) lgP((Kpa))=4.7783-76814.6/T_((K))~(1.7326),平均百分偏差为0.39%。
The saturated vapor pressures of dimethyl carbonate at 14 ° -97 ° C and 2,3-dichloropropenes at 17 ° -94 ° C were measured by a self-designed dual-temperature boiling point meter. Experimental data were associated with two three-parameter vapor pressure equations. (1) Dimethyl carbonate: (1a) lgP _ (mmHg) = 7.3089-1413.0 / (228.90 + t ° C)) (Antoine Equation). The mean percentage deviation from the calculated value was 0.25% 1b) lgP _ ((KPa)) = 5.7698-10012.4 / T_ ((K)) ~ (1.3377) The average percentage deviation was 0.26%. (2) 2,3-dichloropropene: (2a) lgP_ (mmHg) = 6.4468-976.42 / (180.37 + t ° C)) (Antoine Equation) with an average percentage deviation of 0.33%; (2b) (Kpa) = 4.7783-76814.6 / T _ ((K)) ~ (1.7326), the average percentage deviation was 0.39%.