coal tar

Black industrial pitch

Coal tar is a thick, dark liquid produced when coal is heated in the absence of air.

It contains hundreds of compounds and serves as a source for dyes, drugs, and industrial chemicals.

In medicine, coal tar appears in shampoos and ointments to treat psoriasis and dandruff: coal tar shampoo, coal tar soap.

industrial

distillation

Purification via vaporization

byproduct · steelworks · blast furnace · petrochemical · heavy industry · hydrocarbon · naphthalene · phenol · creosote · pitch

sealant

waterproofing

Making impervious to moisture

weatherproofing · crack filler · wood preservative · creosote · pitch · mastic · membrane · moisture barrier

medicinal

psoriasis

Immune system attacks skin cells

scalp · shampoo · ointment · topical · seborrhea · itching · pruritus · inflammation · plaque · therapeutic

aromatic

smoky

Filled with combustion haze

  • acridUnpleasantly sharp-smelling
  • pungentSharply strong-smelling
  • sharpFine-edged, or astute

distinctive · naphthalene · mothball · carbolic · phenolic

pavement

asphalt

Petroleum-based paving material

macadam · roadway · driveway · resurfacing · surfacing · paving · hot-mix · patching · pothole · chipseal

Categories
Opposites
source material

coal tarpetroleum

Natural underground hydrocarbon liquid

crude oil · pine tar · wood tar · natural gas · shale oil

natural vs. synthetic origin

coal tarnatural resin

Plant-derived sticky exudate

tree sap · beeswax · plant extract · essential oil · amber

purity/refinement

coal tarpharmaceutical grade

Purity standard for medications

distillate

Family

coal, tar, charcoal, coalesce, coalition, tarry, tarred, tarring, colliery

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G