Bitumen Petroleum And Asphalt 60 70 80 100 150 200 120 - Russia

Bitumen is the heaviest, thickest form of PETROLEUM. Bitumen

does not flow freely: it is heavier than water and more

viscous than molasses. Most of the hydrocarbons in bitumen

are heavier than pentane, and about half are very heavy

molecules with a boiling point over 525° C. The light

fractions are high in naphthenes (used in making gasoline

and PETROCHEMICALS); the heavy fractions are high in

asphaltenes (used in making asphalt). Bitumen also contains

up to 5% sulphur by weight, and small amounts of oxygen,

heavy metals and other contaminants. Most deposits contain

mixtures of bitumen, sand, water, small amounts of heavy

metals and other contaminants. In its natural state, bitumen

is suitable only for paving roads. Compared to conventional

crude oil, bitumen contains too much carbon and too little

hydrogen

bitumen Mixture of tarlike hydrocarbons derived from

petroleum. Black or brown, it varies from viscous to solid;

the solid form is usually called asphalt. Bitumen occurs in

nearly every part of the world and in nearly the whole range

of geologic strata. The term may also refer to synthetic

hydrocarbon compounds Any of various flammable mixtures of

hydrocarbons and other substances, occurring naturally or

obtained by distillation from coal or petroleum, that are a

component of asphalt and tar and are used for surfacing

roads and for waterproofing.

Bitumen is a black, oily, viscous material that is a

naturally-occurring organic byproduct of decomposed organic

materials. Also known as asphalt or tar, bitumen was mixed

with other materials throughout prehistory and throughout

the world for use as a sealant, adhesive, building mortar,

incense, and decorative application on pots, buildings, or

human skin. The material was also useful in waterproofing

canoes and other water transport. It is also flammable

Mixture of tarlike hydrocarbons derived from petroleum.

Black or brown, it varies from viscous to solid; the solid

form is usually called asphalt. Bitumen occurs in nearly

every part of the world and in nearly the whole range of

geologic strata.

The term may also refer to synthetic hydrocarbon compounds

Any of various flammable mixtures of hydrocarbons and other

substances, occurring naturally or obtained by distillation

from coal or petroleum, that are a component of asphalt and

tar and are used for surfacing roads and for waterproofing.