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Flash Point of a Flammable Chemical
The 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]
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