Flash Point - Fuels
Some common fuels and their flash points
- The flash point of a chemical is the lowest temperature where enough fluid can evaporate to form a combustible concentration of gas.
Some fuels and their flash points at atmospheric pressure are indicated below:
The flash point of a chemical is the lowest temperature where it will evaporate enough fluid 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.
| Hazard | Flash Point |
| Very Low Hazard | Flash point > 200oF (93oC) |
| Moderate Low Hazard | Flash point 150oF to 200oF (66oC to 93oC) |
| High to Moderate Hazard | Flash point 100oF to 150oF (38oC to 66oC) |
| Extreme to High Hazard | Flash point 0oF to 100oF (-18oC to 38oC) |
| Extreme Hazard | Flash point < 0oF (-18oC) |
| 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 |