Flash Points - Liquids

The flash point of a chemical substance is the lowest temperature where enough fluid can evaporate to form a combustible concentration of gas. This tool provides flash points for common liquids and fuels at atmospheric pressure.

Flash Points - Liquids

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.

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.

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Flash Point-- °C
FuelFlash Point (°F)
Acetaldehyde-36
Acetone0
Acentonitrile43
Acrylonitrile32
Allyamine-20
Aniline158
Anisole126
Benzene12
Benzaldehyde145
Biodiesel266
Butanal-7.6
n-Butane-76
1-Butanol99
Carbon Disulfide-22
Cyclohexanone111
Diesel Fuel (1-D)100
Diesel Fuel (2-D)126
Diesel Fuel (4-D)130
Diethanolamine342
Diethylene glycol diethyl ether180
Diethyl ether-49
Diisopropyl ether-18
Dimethyl sulfate181
Dimethyl sulfide-35
Ethyl Alcohol (Ethanol)63
Ethylamine3.2
Formaldehyde185
Fuels Oil No.1100 - 162
Fuels Oil No.2126 - 204
Fuels Oil No.4142 - 240
Fuels Oil No.5 Lite156 - 336
Fuels Oil No.5 Heavy160 - 250
Fuels Oil No.6150
Furfural140
Furfuryl alcohol167
Gasoline-45
Gear oil375 - 580
Hexylamine84
Iso-Butane-117
Iso-Pentaneless than -60
Iso-Octane10
Isopropylbenzene hydroperoxide347
Jet fuel (A/A-1)100 - 150
Kerosene (paraffin)100 - 162
Methyl Alcohol (Methanol)52
Methylamine32
Motor oil420 - 485
Naphtha32 - 86
n-Pentaneless than -40
n-Hexane-7
n-Heptane25
n-Octane56
Naphthalene174
NeoHexane-54
Paraldehyde97
Peroxyacetic acid106
Petroleum ether< 0
Propanal-22
Propane-156
2-Propanol54
Propylamine-35
Styrene90
Tetrohydrofuran151
Toluene40
Triethanolamine354
Triethylamine19
o-Xylene63
m-Xylene81
p-Xylene81