WESTRON® R507A – PHYSICAL & CHEMICAL PROPERTIES

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WESTRON® R507

PHYSICAL AND CHEMICAL PROPERTIES
Chemical Name1,1,1-Trifluoroethane (R143a)

Pentafluoroethane (R125)

Chemical FormulaCH3CF3 & CHF2CF3
AppearanceColorless liquefied gas
OdorFaint, ether-like odor
Average Molecular Weight (g/mol)98.9
Normal Boiling Point (NBP) (°F)-52.1
Latent Heat of Vaporization @ NBP (BTU/lbs.)84.7
Critical Temperature (°F)159.1
Critical Pressure (psia)537.4
Density of Saturated Vapor @ NBP (lb/ft³)0.35
Density of Saturated Liquid @ 77 °F (lb/ft³)65.4
Specific Heat of Saturated Vapor @ NPB (BTU/lb °F)0.19
Specific Heat of Saturated Liquid @ 77 °F (BTU/lb °F)0.37
Ozone Depletion Potential (ODP) (CFC 11 = 1.0)0
Global Warming Potential (GWP)3,985
Occupational Exposure Limits (8 hr. time/wt. Avg.) (ppm)1,000
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