Tetrafluoroethane, 1,1,1,2-

R134a, R407c = 52% R134a (C2H2F4), 25% R125 (C2HF5) and 23% R32 (CH2F2), R404a = 52% R143a (CH3F3), 44% R125 (C2HF5) and 4% R134a (C2H2F4)

How to detect Tetrafluoroethane, 1,1,1,2-

Formula: C2H2F4 | CAS: 811-97-2

Synonyms: R134a, R407c = 52% R134a (C2H2F4), 25% R125 (C2HF5) and 23% R32 (CH2F2), R404a = 52% R143a (CH3F3), 44% R125 (C2HF5) and 4% R134a (C2H2F4)

Specification

Specification Value/Information
Formula C2H2F4
CAS no. 811-97-2
Gas Response Factor, 11.7 eV ZR
Gas Response Factor, 10.6 eV ZR
Gas Response Factor, 10.0 eV ZR
ppm per mg/m⁻³, (20 °C, 1 bar) 0.236
Molecular Weight, g/mole 102.0
Melting point, °C -101
Specification Value/Information
Boiling point, °C 26.5
Flash point, °C -79
Lower Explosive Limit, % -
Density, g.cm⁻³ 1.21
Ionisation Energy, eV ~12.2
EH40 TWA, ppm 1000
EH40 TWA, mg.m⁻³ 4240

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