Density Measurements for Ethane, Carbon Dioxide, and Methane + Nitrogen Mixtures from 300 to 470 K up to 137 MPa Using a Vibrating Tube Densimeter Gomez-Osorio, M.A.; Browne, R.A.; Carvajal Diaz, M.; Hall, K.R.; Holste, J.C.; Journal of Chemical & Engineering Data 2016, 61, 2791-2798