0104887 - UCHP-M 20040141 RIV GB eng J - Journal Article
Roháč, V. - Růžička, K. - Růžička, V. - Zaitsau, D. H. - Kabo, G. J. - Diky, V. - Aim, Karel
Vapour Pressure of Diethyl Phthalate.
[Tlak nasycených par diethylftalátu.]
Journal of Chemical Thermodynamics. Roč. 36, č. 11 (2004), s. 929-937. ISSN 0021-9614. E-ISSN 1096-3626
Institutional research plan: CEZ:AV0Z4072921
Keywords : vapour pressure * diethyl phthalate * correlation
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 1.144, year: 2004

Measurements of vapour pressure in the liquid phase and of enthalpy of vaporisation and results of calculation of ideal-gas properties for diethyl phthalate are reported. The method of comparative ebulliometry, the static method, and the Knudsen mass-loss effusion method were employed to determine the vapour pressure. A Calvet-type differential microcalorimeter was used to measure the enthalpy of vaporisation. Simultaneous correlation of vapour pressure, of enthalpy of vaporisation and of difference in heat capacities of ideal gas and liquid/solid phases was used to generate parameters of the Cox equation that cover both the (vapour + solid) equilibrium (approximate temperature range from 220 K to 270 K) and (vapour + liquid) equilibrium (from 270 K to 520 K).

Výsledky měření tlaků nasycených par a výparných tepel diethylftalátu. Experimenty provedeny pomocí srovnávací ebuliometrie, statické metody a Knudsenovy metody. Simultánní korelací termodynamických proměnných byla vyhodnocena Coxova rovnice platná v oborech 220-520 K.
Permanent Link: http://hdl.handle.net/11104/0012146