2903392610
- Halogenated derivatives of hydrocarbons
- Fluorinated, brominated or iodinated derivatives of acyclic hydrocarbons
- Other
- Saturated fluorides
- 1,1,1,2-tetrafluoroethane
- 1,1,1,2-Tetrafluoroethane feedstock for pharmaceutical grade production conforming to the following specification:
- not more than 600ppm by weight of R134 (1,1,2,2-tetrafluoroethane),
- not more than 5ppm by weight of R143a (1,1,1-trifluoroethane),
- not more than 2ppm by weight of R125 (pentafluoroethane),
- not more than 100ppm by weight of R124 (1-chloro-1,2,2,2-tetrafluoroethane),
- not more than 30ppm by weight of R114 (1,2-dichlorotetrafluoroethane),
- not more than 50ppm by weight of R114a (1,1-Dichlorotetrafluoroethane),
- not more than 250ppm by weight of R133a (1-Chloro-2,2,2-Trifluoroethane),
- not more than 2ppm by weight of R22 (Chlorodifluoromethane),
- not more than 2ppm by weight of R115 (Chloropentafluoroethane),
- not more than 2ppm by weight of R12 (Dichlorodifluoromethane),
- not more than 20ppm by weight of R40 (Methyl chloride),
- not more than 20ppm by weight of R245cb (1,1,1,2,2-pentafluoropropane),
- not more than 20ppm by weight of R12B1 (Chlorodifluorobromomethane),
- not more than 20ppm by weight of R32 (Difluoromethane),
- not more than 15ppm by weight of R31 (Chlorofluoromethane),
- not more than 10ppm by weight of R152a (1,1-Difluoroethane),
- not more than 20ppm by weight of 1131 (1-Chloro-2 Fluoroethylene),
- not more than 20ppm by weight of 1122 (1-Chloro-2,2-Difluoroethylene),
- not more than 3ppm by weight of 1234yf (2,3,3,3-Tetrafluoropropene),
- not more than 3ppm by weight of 1243zf (3,3,3 Trifluoropropene),
- not more than 3ppm by weight of 1122a (1-chloro-1,2-difluoroethylene),
- not more than 4.5ppm by weight of 1234yf+1122a+1243zf (2,3,3,3-tetrafluoropropene, +1-Chloro-1,2-Difluoroethylene+3,3,3-Trifluoropropene)
- not more than 3ppm by weight of any individual unspecified/unknown chemical,
- not more than 10ppm by weight of all unspecified/unknown chemicals combined,
- not more than 10ppm by weight of Water,
- with an acidity level of not more than 0.1ppm by weight,
- without Halides,
- not more than 0.01% by volume of High Boilers,
- without any odour (no malodour)
for further purification to an inhalation grade of HFC 134a produced under GMP (Good Manufacturing Practice) for use in the manufacture of a propellant for medical aerosols whose contents are taken into the oral or nasal cavities, and/or the respiratory tract (CAS RN 811-97-2)