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Compressed Liquid Densities and Saturated Liquid Densities of Dimethyl Ether (RE170)

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National Research Council, Institute of Building Technologies, Division of Padova, Corso Stati Uniti 4, I-35127 Padua, Italy
Department of Chemical Engineering and Chemical Technology, Imperial College, London SW6 1BY, U.K.
Cite this: J. Chem. Eng. Data 2005, 50, 5, 1667–1671
Publication Date (Web):July 29, 2005
Copyright © 2005 American Chemical Society

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    Dimethyl ether (RE170) is a very important chemical compound, largely employed in the chemical industry, but the available literature data for this fluid, especially in terms of liquid density, are scarce. In this paper, compressed liquid density data were measured along eight isotherms between (283.15 and 353.15) K up to 35 MPa with a vibrating tube densimeter (Anton Paar DMA 512) and, on the basis of these data, the saturated liquid densities were estimated. The overall estimated uncertainty for the density data is within ± 0.1 %. The experimental compressed liquid density data and the estimated saturated density data were correlated by means of fitting equations that are also presented in this paper.


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