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Perfluoromethyl vinyl ether (PMVE) is a colourless odourless gas with freezing point = -155.15°C (Yaws, Carl L. ©2010 Knovel) and boiling point = -26°C (Yaws, Carl L. ©2010 Knovel).
The relative density was estimated to be 5.733 at 20°C, the estimated Log Kow: 1.42 (KOWWIN v1.67a, EPISUITE v4.00).
The water solubility, evaluated in a closed system and with the atmosphere saturated with the gas, is 31.5 mg/L at 28°C (Oriani et al., 2001).
The auto-ignition temperature of PMVE is 180°C at 1 atm, it is a flammable gas having a flammable range in air in percent by volume of 7% - 70%. (DEKRA 2020).
PMVE is packaged in cylinders at pressure higher than 200 kPa. When packaged under pressure its physical form is liquid  at temperatures above  -50°C therefore it fulfils the definition of  Gas under pressure - Liquefied gas   according to GHS/CLP criteria. Specifically, as its critical temperature is ca 89.95°C (Yaws, Carl L. ©2010 Knovel) it fulfils the definition of Low pressure liquefied gas.