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  2. Coal tar - Wikipedia

    en.wikipedia.org/wiki/Coal_tar

    Coal tar is produced through thermal destruction of coal.Its composition varies with the process and type of coal used – lignite, bituminous or anthracite. [13]Coal tar is a mixture of approximately 10,000 chemicals, of which only about 50% have been identified.

  3. Tar - Wikipedia

    en.wikipedia.org/wiki/Tar

    Tar made from coal or petroleum is considered toxic and carcinogenic because of its high benzene content, [citation needed] though coal tar in low concentrations is used as a topical medicine for conditions such as psoriasis. [11] [12] Coal and petroleum tar has a pungent odor. Coal tar is listed at number 1999 in the United Nations list of ...

  4. Creosote - Wikipedia

    en.wikipedia.org/wiki/Creosote

    The term creosote has a broad range of definitions depending on the origin of the coal tar oil and end-use of the material. With respect to wood preservatives, the United States Environmental Protection Agency (EPA) considers the term creosote to mean a pesticide for use as a wood preservative meeting the American Wood Protection Association (AWPA) Standards P1/P13 and P2. [6]

  5. Coal tar in Newtown: How it was found decades ago and why ...

    www.aol.com/coal-tar-newtown-found-decades...

    How did the coal tar get there? In 1917, Southern Public Utilities began manufacturing gas to fuel the city of Greenville. At that time, coal was used as a power source.

  6. Pitch (resin) - Wikipedia

    en.wikipedia.org/wiki/Pitch_(resin)

    Birchbark is used to make birch-tar, a particularly fine tar. The terms tar and pitch are often used interchangeably. However, pitch is considered more solid, while tar is more liquid. Traditionally, pitch that was used for waterproofing buckets, barrels and ships was drawn from pine. It is used to make cutler's resin.

  7. Coal gasification - Wikipedia

    en.wikipedia.org/wiki/Coal_gasification

    Coal tar and coal tar sludges are frequently denser than water and are present in the environment as a dense non-aqueous phase liquid. In the UK, a number of former gasworks sites have been redeveloped for residential and other uses (including the Millennium Dome ), being seen as prime developable land within the confines of city boundaries.

  8. Bituminous waterproofing - Wikipedia

    en.wikipedia.org/wiki/Bituminous_waterproofing

    Bitumen (asphalt or coal-tar pitch) is a material made up of organic liquids that are highly sticky, viscous, and waterproof. [1] Systems incorporating bituminous-based substrates are sometimes used to construct roofs, in the form of "roofing felt" or "roll roofing" products.

  9. Anthracene - Wikipedia

    en.wikipedia.org/wiki/Anthracene

    Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C 14 H 10, consisting of three fused benzene rings. It is a component of coal tar.Anthracene is used in the production of the red dye alizarin and other dyes.

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