| Health / Medical Topics |
Coal Tar
A dark brown or black thick liquid obtained by roasting pine wood or formed as a by-product in the production of coke. Coal tar is a complex mixture of organic substances, including benzene, phenols, sulfur, aniline, toluene, xylene, naphthalene, anthracene and phenanthrene. This substance is used to treat certain skin diseases, especially psoriasis, and is used in the synthesis of dyes, drugs, explosives, flavorings, perfumes, preservatives, synthetic resins, paints and stains. Coal tar exposure leads to an increased risk of developing cancer of skin, lung, bladder, kidney and digestive tract as well as leukemia. It is known to be a human carcinogen. (NCI Thesaurus)
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