武汉工程大学学报2013，Vol.35Issue(2)：6-10,5.DOI:10.3969/j.issn.1674-2869.2013.02.002
甲苯二异氰酸酯相关合成体系密度的测定与关联
Measurement and correlation of density for related toluene diisocynate synthesis system
摘要
Abstract
Toluene diisocynate is an important organic intermediate. Methanol, ethanol and urethylane are key raw materials of toluene diisocynate synthesis. They are chosen to be the research object in order to provide the industry design of necessary physical data density and excess volume. Solubilities of the binary mixtures of methanol-urethylane and ethanol-urethylane at different compositions were determined at the temperature range from 293. 15 K to 308. 15 K and under atmospheric pressure by laser method, and mixture densities were measured by indirect method,then excess molar volumes were calculated by the density data. For the systems, excess molar volumes were negative; in addition, it decreased with the temperature rise as composition unchanged, and it decreased with the temperature rise as composition unchanged. Densities and compositions were correlated with linear model, and the standard deviations of the regression coefficients were lower than 0. 5%; excess molar volumes and compositions were correlated with the Redlich-Kister equation, and the standard deviations of the regression coefficients were lower than 5%. Results show that the linear model and Redlich-Kister can be used to correlate the two mentioned physical properties of the two systems.关键词
甲醇/乙醇/氨基甲酸甲酯/混合密度/超额体积Key words
methanol/ ethanol/ urethylane/ density/ excess volume分类
化学化工引用本文复制引用
宣爱国,潘杨,吴元欣,胡冲,李慧,赵世平..甲苯二异氰酸酯相关合成体系密度的测定与关联[J].武汉工程大学学报,2013,35(2):6-10,5.基金项目
国家自然科学基金资助项目(20906073) （20906073）
武汉工程大学研究生创新基金资助项目(CX201118) （CX201118）
