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Coal tar
Meaning
Noun
●
In Petrochemistry:
A
black
,
viscous
tar
made by the
destructive distillation
of
coal
(to make
coke
and
town gas
); it
contains
a great number of
compounds
including
hydrocarbons
and
phenols
; used in the
preparation
of
medicinal
soap
and
shampoo
, and
industrially
for the
manufacture
of many products.
Sourced from
Wiktionary
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