The influence of bromide-based ionic liquids on solubility of {LiBr (1) + water (2)} system. Experimental (solid + liquid) phase equilibrium data. Part 2
作者:Marta Królikowska、Maciej Zawadzki、Michał Skonieczny
DOI:10.1016/j.molliq.2018.06.006
日期:2018.9
(3)} ternary systems, with fixed IL to LiBr mass fraction w = 0.3 for all ILs and w = 0.1 and 0.2 for ammonium-based ILs and [MOR1,3SO3] have been performed by dynamic method. For all of the tested systems the transition point between lithium bromide dihydrate and monohydrate form was observed. Significant solubility enhancement of lithium bromide in water was obtained by adding ionic liquid, or zwitterionic
这项工作的主要目的是研究离子液体(ILs)或两性离子化合物(ZI)作为LiBr(1)+ water(2)}系统的抗结晶添加剂,通常在吸收式制冷技术中用作工作对。在这项研究中,溴化锂在水中的溶解度已在较宽的温度和组成范围内测定,并与文献数据进行了比较。使用van't Hoff曲线计算二水合锂和一水合锂形式之间的转变温度和焓。这项工作的主要目的是确定和讨论在存在IL或ZI作为添加剂的情况下溴化锂在水中的溶解度。溶解度测量是使用动态方法在(230至370)K的温度范围内进行的。在这项工作中,新的介电常数为:N-甲基-N-(2-羟乙基)吗啉溴化物,[MOR 1,2OH ] [Br],N-(2-乙酰氧基)乙基-N-甲基-吗啉溴化物,[MOR 1,2(OOC)1 ] [ Br],N-甲基-N-(2-乙氧基-2-氧乙基)-吗啉溴化物,[MOR 1,1(COO)2 ] [Br],1-甲基-3-(2-羟乙基)咪唑鎓溴化物,