大学化学2026，Vol.41Issue(9)：347-354,8.DOI:10.12461/PKU.DXHX202508080
部分互溶双液系相图的绘制实验分享
Experimental sharing on the construction of phase diagrams for partially miscible binary liquid systems
摘要
Abstract
In undergraduate phase diagram instruction,most institutions conventionally employ completely miscible binary liquid systems as teaching models.These systems involve measuring vapor-liquid equilibrium data at varying temperatures to construct phase diagrams,thereby validating phase diagram theory and enhancing students'conceptual understanding.Within this pedagogical context,our study investigates the partially miscible isobutyric acid and distilled water system,introducing an innovative experimental approach utilizing the height method for phase diagram construction.The experimental design is fundamentally based on the lever rule from phase diagram theory,with refractive index measurements serving as validation,ultimately yielding a well-defined"cap-shaped"phase diagram.Additionally,the modular teaching framework developed from this experimental design demonstrates adaptability to diverse instructional levels.Through multifaceted practical implementations,this approach effectively cultivates students'experimental design capabilities,data analysis skills,and comprehensive problem-solving competencies.关键词
部分互溶双液系/相图/杠杆规则/高度法Key words
Partially miscible binary liquid system/Phase diagram/Lever rule/Height method分类
社会科学引用本文复制引用
丁琼,龚楚清,陈云华,赵发琼,张海波..部分互溶双液系相图的绘制实验分享[J].大学化学,2026,41(9):347-354,8.基金项目
硼簇基光致变色材料的可控制备及其光驱动甲烷转化机制研究,面上项目(22179100) （22179100）
