Claim: Hexafluoropropylene oxide appears as a colorless gas, has a chemical formula of C3F6O, with a molar mass of 166.02 g/mol and a boiling point of negative 27,4 degrees Celsius.
Evidence: This colourless gas is the epoxide of hexafluoropropylene, that is fluorinated analog of propylene oxide, HFPO is produced by DuPont and 3M and as a precursor to the lubricant Krytox and related materials. Chemical formula C3F6O Molar mass 166.02 g/mol Boiling point -27.4 °C