二组分气-液平衡相图实验的绿色化研究  

Research on green revolution of a binary gas-liquid equilibrium phase diagram

作　　者：苑娟[1] 万焱[1] 褚意新[1] 

机构地区：[1]河南中医学院药学院,河南郑州450046

出　　处：《实验技术与管理》2013年第7期157-159,共3页Experimental Technology and Management

基　　金：河南省教育厅"十二五"规划课题([2012]-JKGHAD-0183);河南中医学院校级课题(MP2011-73)

摘　　要：从实验装置、实验体系、试剂配制、数据测量等方面阐述了二组分气-液平衡相图实验的绿色化改革措施。低压恒流电源的引入,大大降低了沸点仪中电加热丝的熔断率;通过将若干沸点仪串联,增加了同组学生独立操作实验的机会,同时达到了节约用水、缩短实验时间的目的;正丙醇-水实验体系的选择体现了实验绿色化的理念;提前配制法和逐次添加法等试剂配制方式的灵活使用显著提高了试剂利用率;数据测量时的恰当处理有效避免了学生人为错误对实验的影响。实践证明该方案简便实用、效果显著,值得推广和借鉴。Green reform measures in a binary gas-liquid equilibrium phase diagram experiment are elaborated on from experimental device, experimental system, reagent preparation, data measurement, etc. The fusing chance of the electric heating wire in ebulliometer is greatly reduced by introducing low-voltage constant current power supply. Opportunities for students operating experiments independently are increased by certain ebulliometer series. At the same time, the purpose of water conservation and experimental time reducing is achieved. The choice of n-propanol-water binary system reflects the idea of experimental green. Reagent utilization is greatly improved by flexible choice of advance preparation or successive addition methods of reagent preparation. The influence of students＇ subjective error to experiment is effectively avoided by proper treatment of data measurement. It is shown that the program is simple, practical, and the effect is significant, and it is worth spreading and using for reference.

关 键 词：绿色化学 二组分 气-液平衡 相图 

分 类 号：O647.1[理学—物理化学] G424.31[理学—化学]