Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Density measurements of compressed-liquid dimethyl ether + pentane mixtures



Stephanie L. Outcalt, Eric W. Lemmon


Compressed-liquid densities of three compositions of the binary mixture dimethyl ether (CAS No. 115-10-6) + pentane (CAS No. 109-66-0) have been measured with a vibrating U-tube densimeter. Measurements were made at temperatures from 270 K to 390 K with pressures from 1.0 MPa to 50 MPa. The overall combined uncertainty (k = 2) of the density data is 0.81 kg·m-3. Data presented here have been used to improve a previously formulated Helmholtz energy based mixture model. The newly derived parameters are given.
High Temperatures - High Pressures


Compressed-liquid, dimethyl ether, pentane, vibrating-tube densimeter, Helmholtz energy mixture model


Outcalt, S. and Lemmon, E. (2016), Density measurements of compressed-liquid dimethyl ether + pentane mixtures, High Temperatures - High Pressures (Accessed May 29, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created January 1, 2016, Updated January 27, 2020