Flash Points - Liquids
The flash points for some common liquids and fuels.
The flash point of a chemical substance 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 liquids and their flash points at atmospheric pressure:
See also Autoignition temperature and flash point of different hydrocarbons
Fuel | Flash Point (oF) |
---|---|
Acetaldehyde | -36 |
Acetone | 0 |
Acentonitrile | 43 |
Acrylonitrile | 32 |
Allyamine | -20 |
Aniline | 158 |
Anisole | 126 |
Benzene | 12 |
Benzaldehyde | 145 |
Biodiesel | 266 |
Butanal | -7.6 |
n-Butane | -76 |
1-Butanol | 99 |
Carbon Disulfide | -22 |
Cyclohexanone | 111 |
Diesel Fuel (1-D) | 100 |
Diesel Fuel (2-D) | 126 |
Diesel Fuel (4-D) | 130 |
Diethanolamine | 342 |
Diethylene glycol diethyl ether | 180 |
Diethyl ether | -49 |
Diisopropyl ether | -18 |
Dimethyl sulfate | 181 |
Dimethyl sulfide | -35 |
Ethyl Alcohol (Ethanol) | 63 |
Ethylamine | 3.2 |
Formaldehyde | 185 |
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 |
Furfural | 140 |
Furfuryl alcohol | 167 |
Gasoline | -45 |
Gear oil | 375 - 580 |
Hexylamine | 84 |
Iso-Butane | -117 |
Iso-Pentane | less than -60 |
Iso-Octane | 10 |
Isopropylbenzene hydroperoxide | 347 |
Jet fuel (A/A-1) | 100 - 150 |
Kerosene (paraffin) | 100 - 162 |
Methyl Alcohol (Methanol) | 52 |
Methylamine | 32 |
Motor oil | 420 - 485 |
Naphtha | 32 - 86 |
n-Pentane | less than -40 |
n-Hexane | -7 |
n-Heptane | 25 |
n-Octane | 56 |
Naphthalene | 174 |
NeoHexane | -54 |
Paraldehyde | 97 |
Peroxyacetic acid | 106 |
Petroleum ether | < 0 |
Propanal | -22 |
Propane | -156 |
2-Propanol | 54 |
Propylamine | -35 |
Styrene | 90 |
Tetrohydrofuran | 151 |
Toluene | 40 |
Triethanolamine | 354 |
Triethylamine | 19 |
o-Xylene | 63 |
m-Xylene | 81 |
p-Xylene | 81 |
- T (oC) = 5/9 (T (oF) - 32)
Note! - the Auto-Ignition Temperature is not the same as Flash Point - The Auto-Ignition Temperature indicates the minimum temperature required to ignite a gas or vapor in air without a spark or flame being present . Temperature classification of equipment in hazardous areas are related to surrounding substances auto-ignition temperature.