coal tar

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  • noun

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a tar formed from distillation of bituminous coal

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He said that no leniency will be shown to those using substandard and cheap Iranian coal-tar in the construction of roads and stern action will be taken against them under the law after registration of cases.
Indiscriminate actions should immediately be taken against those elements involved in smuggling of substandard coal-tar and subsequently using it in construction and repair of roads," he said.
Coal-Tar Based Sealants Resource Notebook, Section 7 Addendum.
Instead, having long been frustrated by the lack of "definitive answers to real questions about site and waste characterization and remedial engineering of manufactured gas plants" (his words, from the introduction), he devoted 13 years to visiting and studying more than 900 coal-tar sites in North America and Britain.
By 1900, it was 6,360, and by 1913, 9,200, making it perhaps the largest chemical company in the world, producing 24 percent of the world's coal-tar dyes (96).
Reilly coal-tar enamel (CTE) coating products, PCG sleeves can help provide total pipeline corrosion protection.
He recalls using such probes in 1985 to hunt buried and abandoned coal-tar pits.
The option to convert unconventional feedstocks such as heavy oil, coal-tar and coal-oil mixtures will be key in meeting China's transport fuel demand for the next 25 years," said Mr.
Contribution of PAHs from coal-tar pavement sealcoat and other sources to 40 U.
In addition to humane issues, turning animal hides into leather for footwear involves the use of such potentially dangerous substances as chromium, formaldehyde, coal-tar derivatives and cyanide-based dyes.
Utilities have long used hot-applied coal-tar coatings on buried steel pipe to mitigate the effects of corrosion.
Tests of the soil at the various sites revealed coal-tar contamination in the subsurface area of the former gas plants.
Formation of DNA adducts in human skin maintained in short-term organ culture and treated with coal-tar, creosote or bitumen.