Vapour pressures of methoxy substituted benzaldehydes

被引：3
作者：
Verevkin, Sergey P. [1 ,2 ]
Emel'yanenko, Vladimir N. [3 ]
机构：
[1] Univ Rostock, Dept Phys Chem, D-18059 Rostock, Germany
[2] Kazan Fed Univ, Dept Phys Chem, Kazan 420008, Russia
[3] Samara State Tech Univ, Chem Dept, Samara 443100, Russia
来源：
FLUID PHASE EQUILIBRIA | 2021年 / 531卷
关键词：
Lignin; Transpiration method; Vapour pressure; Enthalpy of vaporization; Enthalpy of sublimation; ORGANIC OXYGEN COMPOUNDS; THERMODYNAMIC PROPERTIES; VAPORIZATION; ENTHALPIES;
D O I：
10.1016/j.fluid.2020.112912
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Absolute vapour pressures of 4-hydroxy-3-methoxybenzaldehyde (vanillin), 2-hydroxy-3-methoxybenzal dehyde (ortho-vanillin), 2-hydroxy-5-methoxybenzaldehyde, and 3,5-dimethoxy-benzaldehyde were measured by using transpiration method. Standard molar enthalpies of sublimation and vaporization were derived from vapour pressures temperature dependences. Available primary experimental results on vapour pressures were collected from the literature and evaluated. The consistent set of thermodynamic data can be recommended to optimize the lignin valorisation technologies. (C) 2020 Elsevier B.V. All rights reserved.
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页数：7
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