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首页> 外文期刊>Fluid Phase Equilibria >Effect of ionic liquid, 1-octyl-3-methylimidazolium bromide on the thermophysical properties of aqueous d-glucose solutions at 298.15K
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Effect of ionic liquid, 1-octyl-3-methylimidazolium bromide on the thermophysical properties of aqueous d-glucose solutions at 298.15K

机译：离子液体溴化1-辛基-3-甲基咪唑鎓对298.15K下d-葡萄糖水溶液的热物理性质的影响

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摘要

Thermophysical properties including densities, viscosities, refractive indices, and molar conductivities for ternary systems containing d-glucose, ionic liquid {1-octyl-3-methylimidazolium bromide ([OMIm]Br)} and water have been measured at 298.15K. The density and viscosity data have been used to calculate apparent molar volumes, V_φ, standard partial molar volumes (which equal in value with infinite dilution apparent molar volume), Vφ0, transfer volumes, ΔtrVφ0, of d-glucose from water to aqueous [OMIm]Br solutions and viscosity B-coefficients. An increase in the values of Vφ0, ΔtrVφ0 and viscosity B-coefficient was observed with increase of ionic liquid concentration. Limiting molar conductivities, Λ_0, and ion association constants, K_a, of [OMIm]Br in aqueous d-glucose solutions were estimated from low concentration chemical model (lcCM). Molar refractions, R_D, were calculated from refractive index, n_D, measurements using Lorentz-Lorenz equation. All of these parameters were discussed in terms of the different solute-solvent interactions occurring between d-glucose and ionic liquid.
机译：对于包含d-葡萄糖，离子液体{1-辛基-3-甲基咪唑鎓溴化物（[OMIm] Br）}和水的三元体系，其热物理性质（包括密度，粘度，折射率和摩尔电导率）的测量值为298.15K。密度和粘度数据已用于计算表观摩尔体积V_φ，标准部分摩尔体积（其值等于无限稀释表观摩尔体积的值），Vφ0，d葡萄糖从水到水溶液的转移体积ΔtrVφ0[OMIm ] Br溶液和粘度B系数。随着离子液体浓度的增加，观察到了Vφ0，ΔtrVφ0和粘度B系数的增加。根据低浓度化学模型（lcCM）估算d-葡萄糖水溶液中[OMIm] Br的极限摩尔电导率Λ_0和离子缔合常数K_a。使用洛伦兹-洛伦茨（Lorentz-Lorenz）方程，由折射率n_D测得摩尔折射率R_D。根据d-葡萄糖与离子液体之间发生的不同溶质-溶剂相互作用，讨论了所有这些参数。

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