Vapor Pressure Osmometry Studies of Aqueous Ionic Liquid–Carbohydrate Systems
Vapor Pressure Osmometry Studies of Aqueous Ionic Liquid–Carbohydrate Systems
复制标题
水性离子液体-碳水化合物体系的蒸气压渗透压研究
DOI:
10.1021/acs.jced.7b00719
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发表时间:
2018
影响因子:
--
通讯作者:
Rahmat Sadeghi
中科院分区:
文献类型:
--
作者:
Bahman Jamehbozorg;Rahmat Sadeghi
Precise vapor pressure osmometry (VPO) measurements at 308.15 K were conducted for solutions of three ILs, 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]), 1-butyl-3-methylimidazolium bromide ([Bmim][Br]), and 1-butyl-3-methylimidazolium hydrogen sulfate ([Bmim][HSO4]), in aqueous solutions of three carbohydrates, sucrose, maltose, and maltitol, as well as for solutions of the carbohydrates in aqueous solutions of these ILs. Because of the unfavorable IL–carbohydrate interactions, all the investigated IL + carbohydrates aqueous systems show the soluting-out effect and vapor–liquid equilibria behavior of these systems in the monophasic region show the negative deviation from the semi-ideal behavior (aw + 1 [Bmim][HSO4] ≫ [Bmim][Br]. In the case of [Bmim][BF4]/carbohydrate aqueous systems, which have a phase se...