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The oxidation of hexaÑuoropropene with molecular oxygen in the presence of has been studied at CF3OF 303.0, 313.0 and 323.4 K, using a conventional static system. The initial pressure of was varied CF3OF between 1.7 and 16.6 Torr, that of between 10.0 and 120.2 Torr and that of between 82.0 and 599.8 C3F6 O2 Torr. Several runs were made in the presence of 325.3È499.2 Torr of Major products were N2 . COF2 , and a new compound, The latter was characterised by the CF3C(O)F, CF3OC(O)F CF3OCF2OCF2C(O)F. determination of its relative molecular mass and its IR spectrum, which is consistent with the calculated one using theoretical approximations. Small amounts of were also formed. The oxidation is an CF3OCF2C(O)F homogeneous chain reaction, attaining, at the pressure of used, the pseudo-zero-order condition with O2 respect to as a reactant. It is independent of the total pressure. The basic steps are : the thermal generation O2 of radicals by abstraction of the Ñuorine atom from by chain initiation by the addition CF3O~ CF3OF C3F6 , of to oleÐn leading, in the presence of to the formation of haloalkoxy radicals, which decompose CF3O~ O2 ,3OF 303.0, 313.0 and 323.4 K, using a conventional static system. The initial pressure of was varied CF3OF between 1.7 and 16.6 Torr, that of between 10.0 and 120.2 Torr and that of between 82.0 and 599.8 C3F6 O2 Torr. Several runs were made in the presence of 325.3È499.2 Torr of Major products were N2 . COF2 , and a new compound, The latter was characterised by the CF3C(O)F, CF3OC(O)F CF3OCF2OCF2C(O)F. determination of its relative molecular mass and its IR spectrum, which is consistent with the calculated one using theoretical approximations. Small amounts of were also formed. The oxidation is an CF3OCF2C(O)F homogeneous chain reaction, attaining, at the pressure of used, the pseudo-zero-order condition with O2 respect to as a reactant. It is independent of the total pressure. The basic steps are : the thermal generation O2 of radicals by abstraction of the Ñuorine atom from by chain initiation by the addition CF3O~ CF3OF C3F6 , of to oleÐn leading, in the presence of to the formation of haloalkoxy radicals, which decompose CF3O~ O2 ,3OF between 1.7 and 16.6 Torr, that of between 10.0 and 120.2 Torr and that of between 82.0 and 599.8 C3F6 O2 Torr. Several runs were made in the presence of 325.3È499.2 Torr of Major products were N2 . COF2 , and a new compound, The latter was characterised by the CF3C(O)F, CF3OC(O)F CF3OCF2OCF2C(O)F. determination of its relative molecular mass and its IR spectrum, which is consistent with the calculated one using theoretical approximations. Small amounts of were also formed. The oxidation is an CF3OCF2C(O)F homogeneous chain reaction, attaining, at the pressure of used, the pseudo-zero-order condition with O2 respect to as a reactant. It is independent of the total pressure. The basic steps are : the thermal generation O2 of radicals by abstraction of the Ñuorine atom from by chain initiation by the addition CF3O~ CF3OF C3F6 , of to oleÐn leading, in the presence of to the formation of haloalkoxy radicals, which decompose CF3O~ O2 ,3F6 O2 Torr. Several runs were made in the presence of 325.3È499.2 Torr of Major products were N2 . COF2 , and a new compound, The latter was characterised by the CF3C(O)F, CF3OC(O)F CF3OCF2OCF2C(O)F. determination of its relative molecular mass and its IR spectrum, which is consistent with the calculated one using theoretical approximations. Small amounts of were also formed. The oxidation is an CF3OCF2C(O)F homogeneous chain reaction, attaining, at the pressure of used, the pseudo-zero-order condition with O2 respect to as a reactant. It is independent of the total pressure. The basic steps are : the thermal generation O2 of radicals by abstraction of the Ñuorine atom from by chain initiation by the addition CF3O~ CF3OF C3F6 , of to oleÐn leading, in the presence of to the formation of haloalkoxy radicals, which decompose CF3O~ O2 ,3C(O)F, CF3OC(O)F CF3OCF2OCF2C(O)F. determination of its relative molecular mass and its IR spectrum, which is consistent with the calculated one using theoretical approximations. Small amounts of were also formed. The oxidation is an CF3OCF2C(O)F homogeneous chain reaction, attaining, at the pressure of used, the pseudo-zero-order condition with O2 respect to as a reactant. It is independent of the total pressure. The basic steps are : the thermal generation O2 of radicals by abstraction of the Ñuorine atom from by chain initiation by the addition CF3O~ CF3OF C3F6 , of to oleÐn leading, in the presence of to the formation of haloalkoxy radicals, which decompose CF3O~ O2 ,3OCF2C(O)F homogeneous chain reaction, attaining, at the pressure of used, the pseudo-zero-order condition with O2 respect to as a reactant. It is independent of the total pressure. The basic steps are : the thermal generation O2 of radicals by abstraction of the Ñuorine atom from by chain initiation by the addition CF3O~ CF3OF C3F6 , of to oleÐn leading, in the presence of to the formation of haloalkoxy radicals, which decompose CF3O~ O2 ,2 respect to as a reactant. It is independent of the total pressure. The basic steps are : the thermal generation O2 of radicals by abstraction of the Ñuorine atom from by chain initiation by the addition CF3O~ CF3OF C3F6 , of to oleÐn leading, in the presence of to the formation of haloalkoxy radicals, which decompose CF3O~ O2 ,3O~ O2 , via the CÈC scission to give products containing C(O)F group and radicals, reforming The full CF3~ CF3O~. mechanism is postulated.the CÈC scission to give products containing C(O)F group and radicals, reforming The full CF3~ CF3O~. mechanism is postulated.

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