News tagged with oil
Related topics:
gulf of mexico
· oil spills
· barack obama
· proceedings of the national academy of sciences
· mississippi river
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Oil
An oil is a substance that is in a viscous liquid state ("oily") at ambient temperatures or slightly warmer, and is both hydrophobic (immiscible with water) and lipophilic (miscible with other oils, literally). This general definition includes compound classes with otherwise unrelated chemical structures, properties, and uses, including vegetable oils, petrochemical oils, and volatile essential oils. Oil is a nonpolar substance.
The term oil is often used colloquially to refer to petroleum.
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