Density and viscosity measurements of diethylene glycol dimethyl ether

Measurements of the density and viscosity for diethylene glycol dimethyl ether are performed in the temperature range from 243.15 to 323.15 K at pressures up to 20 MPa using a vibrating-wire viscometer/densimeter. The overall uncertainties of these results are ±0.2% for density and ±2% for viscosity. The measurements were correlated with Tait-like equation for density and hard-sphere scheme for viscosity. The average absolute deviation and maximum absolute deviation of the density measurements from the correlation are 0.07% and 0.19%, respectively. With regard to viscosity, the average absolute deviation and maximum absolute deviation of the present results from the correlations are 0.83% and 2.20%, respectively. Comparisons of the experimental data and literature data with the values calculated by the correlations at different temperatures and pressures are presented.