PVT Property Measurements for Some Aliphatic Esters from (298 to 393) K and up to 35 MPa

• Autor(a) principal: Gardas, Ramesh L.
• Data de Publicação: 2007
• Outros Autores: Johnson, Irudayaraj, Vaz, David M. D., Fonseca, Isabel M. A., Ferreira, Abel G. M.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10316/10272; https://doi.org/10.1021/je060339m

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.