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Vapors

Vapors

  • Gaseous state of substances that are either liquids or solids at room temperatures
    • Gasoline evaporates
    • Dry ice (solid carbon dioxide) sublimates

Vaporization is a function of temperature

  • Increasing the temperature of the combustible liquid increases the amount of vapor produced
Vaporization is a function of temperature

Flashpoint

  • Temperature at which a combustible liquid gives off enough vapor to form an ignitable mixture

Flashpoints Vary

Common Flashpoints (degrees F)
Gasoline (aviation grade)- 50 (approx.)
Acetone0
Methyl ethyl ketone24
Ethanol (96 %) 62
Diesel oil100-190

Flammable and combustible liquid classifications (OSHA 29 CFR 1910.106)

Flash Point Temp