摘要
用独特的毛细管流动法装置测定物质的临界温度和临界压力,该法具有体积小、升温迅速和受热均匀等特点,适于测定不稳定化合物的临界性质。以正己烷、1 庚烯为标准试剂,对该装置进行了考核。测定了溴乙烷、丙烯酸丁酯、烯丙醇3种物质的临界温度及临界压力。首次提供了丙烯酸丁酯、烯丙醇的临界数据,并且校正了溴乙烷临界温度和临界压力值。
A unique capillary-flow method apparatus was used to determine the critical temperatures (T_c) and (critical) pressures (p_c).Such method has the advantages of simple structure,rapid heating-up and evenly-heated, and is suitable for determining the critical properties of unstable compounds.Apparatus was calibrated with n-h(exane) and n-heptene as standard reagents.The critical temperatures and pressures of three organic compounds,including ethyl bromide,n-butyl acrylate,allyl alcohol were determined with such apparatus.The T_c and p_c data of ethyl bromide are more reliable than the early years work, and the data of n-butyl acrylate and allyl alcohol were provided for the first time.
出处
《化学工程》
CAS
CSCD
北大核心
2004年第5期66-68,73,共4页
Chemical Engineering(China)
基金
天津市自然科学基金项目(973602911)
关键词
临界参数
流动法
基团贡献法
溴乙烷
丙烯酸丁酯
烯丙醇
critical properties
capillary-flow method
group-contribution method
ethyl bromide
n-butyl (acrylate)
allyl alcohol
