Gases hydrocarbon liquified

Oil - is a mixture of hydrocarbons, as well as individual chemical compounds obtained by refining petroleum and associated gas. A striking example hydrocarbon mixtures are commercial gasoline representing the compounded mixture obtained in the process of refining compounds which corresponds to a number of properties required standards. The name of the commodity stored gasoline from the main component of this mixture - the gasoline fraction.

Petroleum products are classified according to a variety of different parameters. They can be divided in the state of aggregation: solid, liquid, gaseous
Additionally, identify several classes according to the degree of danger substances, depending on the flash point:
I class (t flash at least 28 C) - gasolines
Class II (t flare 28 . . . 61 C) - kerosenes, diesel
III class (t flare 61 . . . 120 C) - diesel fuel, fuel oil
IV class (t flashes over 120 C) - oils, bitumens, waxes