PVT Property Measurements for Some Aliphatic Esters from (298 to 393) K and up ...

• Author(s): Gardas, Ramesh L. ; Johnson, Irudayaraj ; Vaz, David M. D. ; Fonseca, Isabel M. A. ; Ferreira, Abel G. M.
• Date: 2007
• Persistent ID: http://hdl.handle.net/10316/10272
• Origin: Estudo Geral - Universidade de Coimbra
• Document Type: Article
• Language: English

Description

The results of PVT measurements of the liquid phase within the temperature range of (298 to 393) K and up to 35 MPa are presented for some aliphatic esters. Measurements were made by means of a vibrating-tube densimeter, model DMA 512P from Anton Parr. The calibration of the densimeter was performed with water and n-heptane as reference fluids. The experimental PVT data have been correlated by a Tait equation. This equation gives excellent results when used to predict the density of the esters using the method proposed by Thomson et al. (AIChE J. 1982, 28, 671−676). Isothermal compressibilities, isobaric expansivities, thermal pressure coefficients, and changes in the isobaric heat capacity have been calculated from the volumetric data. http://dx.doi.org/10.1021/je060339m