Vapour pressure and enthalpy of vaporization of di-iso-propyl and di-tert-butyl esters of dicarboxylic acids
| Autor: | Sergey P. Verevkin, Eugen L. Krasnykh, Svetlana V. Portnova |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Tert butyl Vapor pressure General Chemical Engineering General Physics and Astronomy chemistry.chemical_element Enthalpy of vaporization Medicinal chemistry chemistry Internal consistency Vaporization Organic chemistry Physical and Theoretical Chemistry Linear correlation Carbon Alkyl |
| Zdroj: | Fluid Phase Equilibria. 309:114-120 |
| ISSN: | 0378-3812 |
| DOI: | 10.1016/j.fluid.2011.07.007 |
| Popis: | Molar enthalpies of vaporization of the branched aliphatic alkyl esters of dicarboxylic acids R-CO 2 -(CH 2 ) n -CO 2 -R with n = (0–4) with R = iso-C 3 H 7 , tert-C 4 H 9 were obtained from the temperature dependence of the vapour pressure measured by the transpiration method. These experimental results were checked for internal consistency and compared with the data available from the literature. A linear correlation of enthalpies of vaporization Δ l g H m (298.15 K) of the alkyl esters of dicarboxylic acids with the number of carbon atoms, as well as with the Kovat's indices on the low-polar GC column has been found. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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