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Medical Propellant

Solstice® Air

As a near-zero global warming potential (GWP) propellant, our Solstice® Air offers performance similar to HFC-134a and is a near drop-in replacement with only minimal changes required to equipment.

Overview
Solstice Air is a breakthrough for pressurized metered dose inhalers (pMDIs). A non-flammable and low global warming potential (GWP) alternative to hydrofluorocarbons, it is non-ozone-depleting, VOC-exempt (U.S. EPA and CARB), with an ultra-low GWP of less than 1.

Note: Search Solstice* Air when using the SDS Finder
Specifications

General Information

  • ASHRAE Number
    • 34
  • Brand
    • Solstice®
  • Chemical Name
    • trans-1,3,3,3-Tetrafluoropropene
  • Formula
    • CF3-CH=CHF
  • Linear Formula
    • CF<sub>3</sub>CH=CHF
  • Synonyms
    • HFO-1234ze (E), 1234ze(E), trans-1234ze

Physical Properties

  • Critical Density
    • 489 kg/m3
  • Critical Pressure
    • 36.36 bar
  • Expansion Ratio
    • 247 at 1 atm and 60 °F (15.6 °C) (Liquid to Gas)
  • Kauri-Butanol Value
    • 12.5
  • Liquid Density
    • 1.17 g/mL at 21 °C
  • Liquid Expansion Coefficient
    • 0.0017 at 60 °F (15.6 °C)
  • Liquid Viscosity
    • 0.20 cP at 25 °C
  • Molecular Weight
    • 114 g/mol
  • Solubility in Water
    • 373 ppm at 20 °C
  • Solubility of Water
    • 225 ppm at 20 °C
  • Specific Gravity
    • 3.958 at 60 °F (15.5 °C)
  • Surface Tension
    • 8.95 mN / m
  • Vapor Pressure
    • 3.4 bar (49 psig) at 21 °C hectopascal

Temperature

  • Boiling Point/Range
    • -19 °C at 1 atm
  • Critical Temperature
    • 109.4 °C

Safety & Environment

  • Flammable Range
    • Non-Flammable (ASTM E-681/ISO 10156)
  • Global Warming Potential
    • <1
  • Ozone Depletion Potential
    • 0

Standards & Approvals

  • ASHRAE Safety Classification
    • A2L

General Information

  • ASHRAE Number
    • 34
  • Brand
    • Solstice®
  • Chemical Name
    • trans-1,3,3,3-Tetrafluoropropene
  • Formula
    • CF3-CH=CHF
  • Linear Formula
    • CF<sub>3</sub>CH=CHF
  • Synonyms
    • HFO-1234ze (E), 1234ze(E), trans-1234ze

Physical Properties

  • Critical Density
    • 489 kg/m3
  • Critical Pressure
    • 36.36 bar
  • Expansion Ratio
    • 247 at 1 atm and 60 °F (15.6 °C) (Liquid to Gas)
  • Kauri-Butanol Value
    • 12.5
  • Liquid Density
    • 1.17 g/mL at 21 °C
  • Liquid Expansion Coefficient
    • 0.0017 at 60 °F (15.6 °C)
  • Liquid Viscosity
    • 0.20 cP at 25 °C
  • Molecular Weight
    • 114 g/mol
  • Solubility in Water
    • 373 ppm at 20 °C
  • Solubility of Water
    • 225 ppm at 20 °C
  • Specific Gravity
    • 3.958 at 60 °F (15.5 °C)
  • Surface Tension
    • 8.95 mN / m
  • Vapor Pressure
    • 3.4 bar (49 psig) at 21 °C hectopascal

Temperature

  • Boiling Point/Range
    • -19 °C at 1 atm
  • Critical Temperature
    • 109.4 °C

Safety & Environment

  • Flammable Range
    • Non-Flammable (ASTM E-681/ISO 10156)
  • Global Warming Potential
    • <1
  • Ozone Depletion Potential
    • 0

Standards & Approvals

  • ASHRAE Safety Classification
    • A2L
  • Brand : Solstice®
  • Synonyms : HFO-1234ze (E), 1234ze(E), trans-1234ze
  • Linear Formula : CF3CH=CHF
  • Chemical Name : trans-1,3,3,3-Tetrafluoropropene
  • Formula : CF3-CH=CHF
  • ASHRAE Number : 34
  • Critical Density : 489 kg/m3
  • Specific Gravity : 3.958 at 60 °F (15.5 °C)
  • Solubility in Water : 373 ppm at 20 °C
  • Surface Tension : 8.95 mN / m
  • Solubility of Water : 225 ppm at 20 °C
  • Molecular Weight : 114 g/mol
  • Liquid Viscosity : 0.20 cP at 25 °C
  • Critical Pressure : 36.36 bar
  • Vapor Pressure : 3.4 bar (49 psig) at 21 °C hectopascal
  • Liquid Density : 1.17 g/mL at 21 °C
  • Kauri-Butanol Value : 12.5
  • Liquid Expansion Coefficient : 0.0017 at 60 °F (15.6 °C)
  • Expansion Ratio : 247 at 1 atm and 60 °F (15.6 °C) (Liquid to Gas)
  • Boiling Point/Range : -19 °C at 1 atm
  • Critical Temperature : 109.4 °C
  • Global Warming Potential : <1
  • Ozone Depletion Potential : 0
  • Flammable Range : Non-Flammable (ASTM E-681/ISO 10156)
  • ASHRAE Safety Classification : A2L
Sales Sheet
Name
Description
File Size
Date
Size
Digital Sell Sheet
application/pdf 3.22 MB
10/31/2023
3.22 MB
Sell Sheet Printable Version
application/pdf 17.18 MB
10/31/2023
17.18 MB
Application Note
Name
Description
File Size
Date
Size
Solstice Air for Inhaled Applications - May 2022
application/pdf 1.31 MB
10/31/2023
1.31 MB
Brochure
Name
Description
File Size
Date
Size
HFO-1234ze(E), cGMP
application/pdf 1.55 MB
9/9/2024
1.55 MB
Data Sheet
Name
Description
File Size
Date
Size
Technical Bulletin
application/pdf 628.5 KB
8/26/2024
628.5 KB
Name
Description
File Size
Date
Size
Digital Sell Sheet
application/pdf 3.22 MB
10/31/2023
3.22 MB
HFO-1234ze(E), cGMP
application/pdf 1.55 MB
9/9/2024
1.55 MB
Technical Bulletin
application/pdf 628.5 KB
8/26/2024
628.5 KB
Solstice Air for Inhaled Applications - May 2022
application/pdf 1.31 MB
10/31/2023
1.31 MB
Sell Sheet Printable Version
application/pdf 17.18 MB
10/31/2023
17.18 MB
Name
Description
File Size
Date
Size
Sell Sheet Printable Version
17.18 MB
10/31/2023
Solstice Air for Inhaled Applications - May 2022
1.31 MB
10/31/2023
HFO-1234ze(E), cGMP
1.55 MB
9/9/2024
Technical Bulletin
628.5 KB
8/26/2024