Data behind Figure 6.4: CH₄–C₂H₆–C₃H₈ +N₂ pseudo-binary phase diagram at 1.5 bar

Caption: Pseudo-binary phase diagram comparing the experimental freezing points of the CH₄–C₂H₆–C₃H₈ +N₂ (filled data points) and CH₄–C₂H₆ +N₂ (open data points) systems at 1.5 bar. The color bars on the right indicate the amount of propane that was added to the N₂-free CH₄ alkane ratio (r_M). The data is further delineated by whether a given sample crossed the three-phase S_ELV boundary (blue) or the four-phase S_ELL_NV boundary (red). The presence of the vapor phase is removed, meaning only the condensed phases shown.

Excel spreadsheet includes experimental freezing points for the CH₄–C₂H₆–C₃H₈ +N₂ (this work) and CH₄–C₂H₆ +N₂ systems (Engle et al., 2024)*

* Engle et al. (2024), Ice Formation, Exsolution, and Multiphase Equilibria in the Methane–Ethane–Nitrogen System at Titan Surface Conditions. The Planetary Science Journal, 5(10), p.224.