trans-1,3,3,3-Tetrafluoropropene
Chemical compound / From Wikipedia, the free encyclopedia
trans-1,3,3,3-Tetrafluoropropene (HFO-1234ze(E), R-1234ze(E)) is a hydrofluoroolefin. It was developed as a "fourth generation" refrigerant to replace fluids such as R-134a, as a blowing agent for foam and aerosol applications, and in air horns and gas dusters.[3] The use of R-134a is being phased out because of its high global warming potential (GWP). HFO-1234ze(E) itself has zero ozone-depletion potential (ODP=0), a very low global warming potential (GWP < 1 ), even lower than CO2, and it is classified by ANSI/ASHRAE[4] as class A2L refrigerant (lower flammability and lower toxicity).[5]
Quick Facts Names, Identifiers ...
Names | |
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Preferred IUPAC name
(1E)-1,3,3,3-Tetrafluoroprop-1-ene | |
Other names
R-1234ze(E); HFO-1234ze(E); trans-1,3,3,3-tetrafluoro-1-propene; trans-1,3,3,3-tetrafluoropropylene; trans-1,3,3,3-tetrafluoroprop-1-ene | |
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ECHA InfoCard | 100.238.116 |
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Properties | |
C3H2F4 | |
Molar mass | 114.043 g·mol−1 |
Appearance | Colorless gas[1] |
Melting point | −156 °C (−249 °F; 117 K)[2] |
Boiling point | −19 °C (−2 °F; 254 K)[1][2] |
Critical point (T, P) | 109.4 °C, 36.36 bar[2] |
0.373 g/L[1][2] | |
Vapor pressure | 703 kPa at 310 K |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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