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Additional
wood tar
English Wikipedia - The Free Encyclopedia
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Tar
Tar
is a black mixture of
hydrocarbons
and free
carbon
obtained from a wide variety of
organic materials
through
destructive distillation
. Tar can be produced from
coal
,
wood
,
petroleum
, or
peat
. Production and trade in
pine-derived tar
was a major contributor in the economies of
Northern Europe
and
Colonial America
. Its main use was in preserving wooden vessels against rot. The largest user was the
Royal Navy
. Demand for tar declined with the advent of iron and steel ships.
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Tar (disambiguation)
Tar
is a viscous organic black liquid.
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Time at risk
Time at Risk
(
TaR
) is a time-based
risk measure
designed for corporate finance practice.
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