Flash Point

This is the lowest temperature at which a liquid gives off sufficient vapor at its surface to form a flammable or an explosive mixture. Many hazardous liquids have flash point at or below room temperature and are covered by a layer of flammable vapor that will ignite immediately if exposed to an ignition source. Vaporization increase as temperature rise and consequently they are more hazardous at elevated temperatures.

         Flash points for common flammable liquids.

NAME	FLASH POINT (oF)
Acetaldehyde	-38
Acetic acid	103
Acetone	-4
Benzene	12
Carbon Disulfide	-22
Cyclohexane	-4
Diethyl ether	-49
Ethyl alcohol	55
Ethyl benzene	70
Ethyl ether	-49
Gasoline	-45
Iso- butane	-117
Iso-pentane	<-60
Iso-octane	10
Methyl alcohol	52
Naphtha	-57
n-Butane	-76
n-Heptane	25
n-Hexane	-7
n-octane	56
n-pentane	-57
Styren	88
Toluene	40
Xylene-m	81
Xylene-o	90
Xylene-p	81