Hexane (C6H14) is a volatile hydrocarbon used in a variety of applications. It can cause serious fires under certain conditions.
Hexane may refer to:
(1) the unbranched isomer n-hexane
(2) one of 4 branched isomer: 3-methyl pentane, 2-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane
Molecular weight: 86.18g
Lower explosive limit (in percent by volume): 1.2
Upper explosive limit (in percent by volume): 7.4
Vapor pressure at 25°C is 151 mm Hg
Boiling point: 68.5 to 69.1°C
Hexane is colorless and smells like gasoline. It is relatively insoluble in water.
Hexane is highly flammable. Ignition can occur from:
(1) flame
(2) spark
(3) contact with an oxidizing agent
Density: 0.65 g per mL. It is heavier than air and may spread out over the ground to be ignited at a distance.
Collection of hexane in a confined space such as a sewer can result in an explosion.
Spraying water onto burning hexane can spread the fire. Use dry chemical, carbon dioxide or alcohol-resistant foam to extinguish the fire. Water spray can be used to cool containers in the area and to suppress vapors.
Once ignited hexane can release carbon monoxide and carbon dioxide.
Containers of hexane may form ignitable mixtures with air in a closed container. Sufficient hexane may remain in a closed, “empty” hexane container to ignite.
