Thermochemical properties of benzoic acid derivatives XII. Vapour pressures and enthalpies of sublimation and formation of five dimethoxybenzoic acids

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 1985 English Publisher:Elsevier BVJournal:The Journal of Chemical Thermodynamics, volume 17, pages 1,091-1,096 (issn: 0021-9614,

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Authors: Colomina, M.; Jiménez Sierra, M. Pilar; Roux, María Victoria; Turrión, C.;

doi: 10.1016/0021-9614(85)90096-5

handle: 10261/271674

Thermochemical properties of benzoic acid derivatives XII. Vapour pressures and enthalpies of sublimation and formation of five dimethoxybenzoic acids

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Abstract

Vapour pressures of very pure samples of five dimethoxybenzoic acids have been determined over a range of temperatures near 298 K by the Knudsen-effusion technique. From the experimental results and our previously published enthalpies of formation in the crystalline state the following results for five m,n-(CH3O)2C6H3CO2H at 298.15 K have been derived. {A table is presented}. © 1985. We acknowledge financial support from Spanish CAICYT under project No. 503/8 1.

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