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The residue remaining in the autoclave vessel is a dark, syrupy mass called creosote, which is composed mainly of phenolic acid and cresylic acid. The original composition of creolin is a creosote tar oil, caustic soda, soaps, and very little water. It is of low technology and a very powerful disinfectant. [1]
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]
Coal tar was discovered circa 1665 and used for medical purposes as early as the 1800s. [6] [8] Circa 1850, the discovery that it could be used as the main raw material for the synthesis of dyes engendered an entire industry. [9] It is on the World Health Organization's List of Essential Medicines. [10]
Carbon dioxide emissions from the production of shale oil and shale gas are higher than conventional oil production and a report for the European Union warns that increasing public concern about the adverse consequences of global warming may lead to opposition to oil shale development. [1] [3] Emissions arise from several sources.
Oil shale has been used for industrial purposes since the early 17th century, when it was mined for its minerals. Since the late 19th century, shale oil has also been used for its oil content and as a low grade fuel for power generation. However, barring countries having significant oil shale deposits, its use for power generation is not ...
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As of 2009, 80% of oil shale used globally is extracted in Estonia, mainly because Estonia uses several oil-shale-fired power plants, [52] [54] which has an installed capacity of 2,967 megawatts (MW). By comparison, China's oil shale power plants have an installed capacity of 12 MW, and Germany's have 9.9 MW.
But if you’re concerned, Jung stresses the importance of having proper ventilation when using everyday hair products that may contain D5. “Wherever you are conducting your hair care routine ...