Compressed liquid densities of two dipentaerythritol esters |
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| Authors: | Olivia Fandiñ o,Enriqueta R. Ló pezLuis Lugo,Josefa Ferná ndez |
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| Affiliation: | Laboratorio de Propiedades Termofísicas, Dpto. de Física Aplicada, Facultade de Física, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain |
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| Abstract: | In this work, an experimental study for the determination of the density of two dipentaerythritol esters, dipentaerythritol hexapentanoate (DiPEC5) and dipentaerythritol hexaheptanoate (DiPEC7) has been performed for temperatures ranging from 283.15 K to 398.15 K and pressures up to 70 MPa. The heart of the automatic assembly is an Anton Paar DMA HPM vibrating-tube densimeter. The measured densities have been used to study the behaviour and influence of temperature and pressure on the isothermal compressibility, the isobaric thermal expansivity and the internal pressure. |
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| Keywords: | Dipentaerythritol ester Density Pressure Internal pressure Lubricant |
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