Bitumen: Difference between revisions
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: AKA Asphaltum, Beach Tar | : AKA Asphaltum, Beach Tar | ||
==Uses== | ==Uses== | ||
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==See Also== | ==See Also== | ||
==References== | ==References== | ||
[[Category:Crude Mixtures]][[Category: | [[Category:Crude Mixtures]][[Category:Minerals]] | ||
Latest revision as of 12:34, 27 January 2020
- AKA Asphaltum, Beach Tar
Uses
Other
- Source of aromatics
- Source of hydrocarbons
Natural Occurrence
Bitumen is a naturally occurring substance contained within a mineral or sands deposit. It is normally a black solid or hardened resin, although in the presence of heat it will melt to a liquid.
Hazards
Composition
Bitumen is almost solid at room temperature and can be fractionated into 4 components, each its own crude mixture, divided approximately as follows:
17% saturated hydrocarbons (soluble in heptane) 40% aromatics (soluble in toluene or toluene/methanol) 26% resins (polymers soluble in trichloroethylene) 17% asphaltenes. (large polyaromatics not soluble in heptane)
Note that the composition of bitumen found in literature can vary greatly due to the difficulty of getting an accurate measurement.