This page lists chemical and physical properties of 1,1,1,2-tetrafluoroethane.[1]

Physical Properties HFC-134a
Boiling Point at 1 atm −15.34 °F (−26.30 °C)
Freezing Point −153.9 °F (−103.3 °C)
Critical Temperature 213.9 °F (101.1 °C)
Critical Pressure 4060 kPa (588.9 lb/in2 abs)
Critical Volume 1.94 × 10−3 m3/kg (0.031 ft3/lb)
Critical Density 515.3 kg/m3 (32.17 lb/ft3)
Density (Liquid) at 25 °C 1206 kg/m3 (75.28 lb/ft3)
Density (Saturated Vapor) at boiling point 5.25 kg/m3 (0.328 lb/ft3)
Heat Capacity (Liquid) at 25 °C 0.339 kcal/kg·K
Heat Capacity (Vapor at Constant Pressure) at 25 °C and 1 atm 0.204 kcal/kg·K
Vapor Pressure at 25 °C 666.1 kPa
Heat of Vaporization at Boiling Point 217.2 kJ/kg (93.4 Btu/lb)
Thermal Conductivity at 25 °C, liquid 0.0824 W/m·K (0.0478 Btu/hr·ft°F)
Thermal Conductivity at 25 °C vapor at 1 atm 0.0145 W/m·K (0.00836 Btu/hr·ft°F)
Viscosity at 25 °C, liquid 0.202 mPa·S (cP)
Viscosity at 25 °C, vapor at 1 atm 0.012 mPa·S (cP)
Solubility in water at 25 °C and 1 atm 0.15% by weight
Solubility of water in HFC-134a at 25 °C 0.11% by weight
Flammability Limits in Air at 1 atm None
Autoignition temperature 770 °C (1,420 °F)
Ozone depletion potential 0
Halocarbon Global Warming Potential (HGWP)

(For CFC-11, HGWP = 1)

 0.28
Global Warming Potential (GWP)

(100 yr ITH. For CO2, GWP = 1)

 1,200
Toxicity Acceptable Exposure Limit* (8- and 12-hr time-weighted average) 1,000 ppm (v/v)

* Acceptable Exposure Limit (AEL) is an airborne inhalation exposure limit established by DuPont that specifies time-weighted average concentrations to which nearly all workers may be repeatedly exposed without adverse effects.

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References

  1. ↑ "Ethane, 1,1,1,2-tetrafluoro- (CAS 811-97-2) - Chemical & Physical Properties by Cheméo". www.chemeo.com. Retrieved 2019-12-25.
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