Vapor-Liquid Equilibrium Data for Binary Systems Consisting of Either Hexafluoropropene (HFP) or 2,2,3-Trifluoro-3-(trifluoromethyl)oxirane (HFPO) with Carbon Dioxide (R-744) or 2,2-Dichloro-1,1,1-trifluoroethane (R-123) Nelson, W.M.; Subramoney, S.C.; Valtz, A.; Coquelet, C.; Richon, D.; Naidoo, P.; Ramjugernath, D.; Journal of Chemical & Engineering Data 2011, 56, 74-78