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Flash Point of a Flammable ChemicalThe flash point of a chemical is the lowest temperature where enough fluid can evaporate to form a combustible concentration of gas.
The flash point is an indication of how easy a chemical may burn. Materials with higher flash points are less flammable or hazardous than chemicals with lower flash points.
Some fuels and flash points at atmospheric pressure:
Fuel | Flash Point (oF) |
|---|---|
Acetaldehyde | -36 |
Acetone | 0 |
Benzene | 12 |
Biodiesel | 266 |
Carbon Disulfide | -22 |
Diesel Fuel (1-D) | 100 |
Diesel Fuel (2-D) | 126 |
Diesel Fuel (4-D) | 130 |
Ethyl Alcohol, Ethanol | 63 |
Fuels Oil No.1 | 100 - 162 |
Fuels Oil No.2 | 126 - 204 |
Fuels Oil No.4 | 142 - 240 |
Fuels Oil No.5 Lite | 156 - 336 |
Fuels Oil No.5 Heavy | 160 - 250 |
Fuels Oil No.6 | 150 |
Gasoline | -45 |
Gear oil | 375 - 580 |
Iso-Butane | -117 |
Iso-Pentane | less than -60 |
Iso-Octane | 10 |
Jet fuel (A/A-1) | 100 - 150 |
Kerosene | 100 - 162 |
Methyl Alcohol | 52 |
Motor oil | 420 - 485 |
n-Butane | -76 |
n-Pentane | less than -40 |
n-Hexane | -7 |
n-Heptane | 25 |
n-Octane | 56 |
Naphthalene | 174 |
NeoHexane | -54 |
Propane | -156 |
Styrene | 90 |
Toluene | 40 |
Xylene | 63 |
- T(oC) = 5/9[T(oF) - 32]