Hfc134a can be used as refrigerant in automotive air-conditioner, refrigerator, central air-conditioner and commercial refrigeration, and aerosol propellant, fire retardant and foaming agent in pharmaceutical, pesticide, cosmetics and cleaning. Jh pharma grade hfc134a can be used for the treatment of asthma, copd (chronic obstructive pulmonary disease) prevention and treatment of asthma & respiratory infections aerosol; for the treatment of allergic rhinitis nasal aerosol foam aerosols; oral and topical aerosol (eg: to promote nerve sensitivity, and enhance the vitality of tooth pain relief) etc. Description: respiratory system agents, medicine grad Properities: under normal temperature and pressure, colorless gas with a slight scent of ethers. Purity of 1, 1, 1, 2-tetrafluorethane % =99.99 Moisture %= 0.0004 Acidity(as hcl) %= Not detected High boiling residue %= 0.0004 Chloride(detection limit 0.0003%) : no muddy Non-condensable gas in gas phrase(@25ºc) : 0.5 Cas no.:711-97-2 Molecular formula:ch2fcf3 Relative molecular mass:102.03 Melting point:-102.03ºc Boiling point:-26.1ºc Density(25ºc):1.206g/cm3 Odp: 0         gwp:1200