Thermodynamic Properties of 1,1,1,2,2,4,5,5,5-Nonafluoro-4-(trifluoromethyl)-3-pentanone: Vapor Pressure, (p, ρ, T) Behavior, and Speed of Sound Measurements, and an Equation of State McLinden, M.O.; Perkins, R.A.; Lemmon, E.W.; Fortin, T.J.; Journal of Chemical & Engineering Data 2015, 60, 3646-3659