Saturated fluorinated derivatives of acyclic hydrocarbons; 1,1,1,2-tetrafluoroethane (HFC-134a) and 1,1,2,2-tetrafluoroethane (HFC-134)2903.45

1,1,1,2-Tetrafluoroethane (HFC-134a) and 1,1,2,2-tetrafluoroethane (HFC-134)

1,1,1,2-Tetrafluoroethane (HFC-134a)

1,1,2,2-Tetrafluoroethane (HFC-134)

1,1,1,2-Tetrafluoroethane (CAS RN 811-97-2) conforming to the following specifications: -not more than 600 ppm by weight of HFC-134 (1,1,2,2-tetrafluoroethane), -not more than 5 ppm by weight of HFC-143a (1,1,1-trifluoroethane), -not more than 2 ppm by weight of HFC-125 (pentafluoroethane), -not more than 100 ppm by weight of HCFC-124 (1-chloro-1,2,2,2- tetrafluoroethane), -not more than 30 ppm by weight of CFC-114 (1,2-dichlorotetrafluoroethane), -not more than 50 ppm by weight of CFC-114a (1,1-dichlorotetrafluoroethane), -not more than 250 ppm by weight of HCFC-133a (1-chloro-2,2,2-trifluoroethane), -not more than 2 ppm by weight of HCFC-22 (chlorodifluoromethane), -not more than 2 ppm by weight of CFC-115 (chloropentafluoroethane), -not more than 2 ppm by weight of CFC-12 (dichlorodifluoromethane), -not more than 20 ppm by weight of HCC-40 (methyl chloride), -not more than 20 ppm by weight of HFC-245cb (1,1,1,2,2-pentafluoropropane), -not more than 20 ppm by weight of H-12B1 (chlorodifluorobromomethane), -not more than 20 ppm by weight of HFC-32 (difluoromethane), -not more than 15 ppm by weight of HCFC-31 (chlorofluoromethane), -not more than 10 ppm by weight of HFC-152a (1,1-difluoroethane), -not more than 20 ppm by weight of HFO-1131 (1-chloro-2-fluoroethylene), -not more than 20 ppm by weight of HCFO-1122 (1-chloro-2,2-difluoroethylene), -not more than 3 ppm by weight of HFO-1234yf (2,3,3,3-tetrafluoropropene), -not more than 3 ppm by weight of HFO-1243zf (3,3,3-trifluoropropene),  -not more than 3 ppm by weight of HCFO-1122a (1-chloro-1,2-difluoroethylene), -not more than 4,5 ppm by weight of HFO-1234yf HCFO-1122a HFO-1243zf (2,3,3,3-tetrafluoropropene 1-chloro-1,2-difluoroethylene 3,3,3-trifluoropropene), -not more than 3 ppm by weight of any individual unspecified/unknown chemical, -not more than 10 ppm by weight of all unspecified/unknown chemicals combined, -not more than 10 ppm by weight of water, -with an acidity level of not more than 0,1 ppm by weight,  -without halides, -not more than 0,01 % by volume of high boilers, -without any odour (no malodour), for use with or without further purification as an under GMP (Good Manufacturing Practice) produced inhalation grade of HFC-134a in the manufacture of a propellant for medical aerosols whose contents are absorbed in the oral or nasal cavities, and/or the respiratory tract