Hydrofluoroalkane Propellant is now the propellant in most of the pressurized metered dose inhalers,which now also means hydrofluoroalkane inhalers, such as salbutamol, fluticasone, flunisolide, combined with salmeterol and non-extrafine formulation. Now the popular cbd inhalers are all using Hydrofluoroalkane as propellant.
Parameters:
Purity: Pharma Grade , 99.998%
Name of chemical: 1,1,1,2-Tetrafluoroethane
Cas No: 811-97-2
Environmental hazards: ODP value: 0, GWP value: 1200
Physical and Chemical property:
hydrofluoroalkane 134a
Appearance and properties: colourless and transparent liquid with a slight scent of
ether.
PH value: No information.
Melting point: Not available
Boiling point: -26.1℃
Liquid density: 1206kg/m3 (25℃ )
Saturated vapour density (boiling point): 5.25kg/m3
Saturated vapour pressure (kPa): No information
Critical temperature (K): 374.25
Critical pressure (MPa): 4.06
Octanol/water logarithm value: No information
Flash point (℃ ): Not applicable
Ignitron temperature: Not applicable
Upper explosive limit [% (V/V )]: Not applicable
Lower explosive limit [% (V/V )]: Not applicable
Dissolubility: This product can be dissolved in water, it can also be dissolved in
alcohol and aether.
Transportation information
Hazard matter number: 2903399090
UN number:3159
Class No.: 2.2
Packing marker: Non-flammable gas
Packing category: Ⅲ class package
Packing method: Iso tank , Ton tank or Steel Cylinder
F&Q:
What is hydrofluoroalkane and cfc difference?
The metered dose inhaler (MDI) was developed in the 1950’s,when the propellant is CFCs (Chlorofluorocarbons). CFCs were found to deplete the ozone layer high above the earth. The Montreal Protocol was enacted worldwide to reduce the amount of CFCs used, to decrease the ozone depletion. CFC’s have been used in many products, including MDIs. Alternative devices have been developed to replace the CFC propellant in MDIs. Dry powder devices and the HFA propellant in MDIs are replacements for the CFC propellant.
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