Study of the effects of pressure on the viscosity and density of diisodecyl phthalate |
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Authors: | Xavier Paredes Olivia Fandiño María JP Comuñas Alfonso S Pensado Josefa Fernández |
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Institution: | Laboratorio de Propiedades Termofísicas, Departamento de Física Aplicada, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain |
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Abstract: | In the present work viscosity data for three different samples with two different purity grades of diisodecyl phthalate (DIDP) are reported from 303.15 K to 373.15 K up to 60 MPa, together with density values from 283.15 K to 398.15 K and up to 70 MPa. The experimental measurements have been performed with a rotational automated viscometer Anton Paar Stabinger SVM3000, a rolling-ball viscometer Ruska 1602-830 for high pressures and a recently automated Anton Paar DMA HPM vibrating-tube densimeter. The measured data for viscosity have been compared with previous literature values and could be useful to establish together with previous viscosity data, a correlation of the full viscosity surface η(T, P) of DIDP. This correlation is needed for the calibration and verification of high-pressure viscometers at moderate viscosities. |
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