Measurement of high pressure densities and atmospheric pressure viscosities of alkyl phosphate anion ionic liquids and correlation with the ε*-modified Sanchez-Lacombe equation of state
Measurement of high pressure densities and atmospheric pressure viscosities of alkyl phosphate anion ionic liquids and correlation with the ε*-modified Sanchez-Lacombe equation of state
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DOI：
10.1016/j.jct.2016.09.013
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发表时间：
2017-01-01
影响因子：
2.6
通讯作者：
Smith, Richard L., Jr.
中科院分区：
文献类型：
--
作者：
Hiraga, Yuya;Goto, Musashi;Smith, Richard L., Jr.
报道了两种烷基磷酸酯阴离子液体1-乙基-3-甲基咪唑二甲基磷酸酯（[emim][CN]）和1-丁基-3-甲基咪唑二甲基磷酸酯（[ bmim][CN]）在313 ~ 393 K的高压密度和293 ~ 373 K的常压粘度。应用了几种形式的Tait方程，所有形式都可以将数据关联到0.03%平均相对偏差（ARD）内。计算的衍生物性质具有特定的趋势的离子液体。修正后的Sanchez-Lacombe状态方程的关联误差在0.07%以内，比原Sanchez-Lacombe状态方程的关联误差（0.19%）小。改进的Sanchez-Lacombe状态方程的改进可以归因于其在低温下的密堆积密度结构。(C)2016 Elsevier Ltd.
High pressure densities up to 200 MPa from 313 to 393 K and atmospheric pressure viscosities from 293 to 373 K for two alkyl phosphate anion ionic liquids, 1-ethyl-3-methylimidazolium dimethylphosphate ([emim][DMP]) and 1-butyl-3-methylimidazolium dimethylphosphate ([ bmim][DMP]), are reported. Several forms of the Tait equation were applied and all forms could correlate the data to within 0.03% average relative deviation (ARD). The derivative properties calculated had specific trends for the ionic liquids. The epsilon*-modified Sanchez-Lacombe equation of state could correlate the data to within an ARD of 0.07%, and the deviations were lower than those of the original Sanchez-Lacombe equation of state (0.19%). The improvement by epsilon*-modified Sanchez-Lacombe equation of state can be attributed its assumed close-packed density structure at low temperature. (C) 2016 Elsevier Ltd.