Pitzer方程应用于离子液体[Cnmim][H2PO4](n=3,4,5,6)溶解焓研究
Acta Physico-chimica Sinica（2018）
Abstract
在298.15 K下,利用等温环境溶解反应热量计,测定了离子液体[Cnmim][H2PO4](n=3,4,5,6)(1-烷基-3-甲基咪唑磷酸盐)在水中不同浓度的摩尔溶解热(?solHm),根据Pitzer电解质溶液理论计算得到了标准摩尔溶解焓(?solH0m)和Pitzer焓参数:βM(0)XL、βM(1)XL和C?L,并计算了表观相对摩尔焓.通过推导讨论,得到了离子液体[Cnmim][H2PO4](n=3,4,5,6)同系物每摩尔亚甲基对标准摩尔溶解焓的贡献.
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Key words
Ionic liquid,Isoperibol calorimeter,Solution enthalpy,Pitzer's equation
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