Coal-tar - Factbites

Coal-tar - Factbites
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Topic: Coal-tar

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	Coal - Wikipedia, the free encyclopedia
		Coal is a fossil fuel extracted from the ground by deep mining, coal mining (open-pit mining or strip mining).
		Coal is formed from plant remains that have been compacted, hardened, chemically altered, and metamorphosed by heat and pressure over geologic time.
		Coal is thought ultimately to derive its name from the Old English col but this actually meant charcoal at the time; coal was not mined prior to the late Middle Ages; i.e.
	en.wikipedia.org /wiki/Coal (2465 words)

	COAL-TAR - LoveToKnow Article on COAL-TAR
		The ordinary yield of tar in the manufacture of coal-gas is between 4 and 5% of the weight of the coal.
		Small quantities of fatty (aliphatic) hydrocarbons are never absent, even in pure tars, and are found in considerable quantities when shales and similar matters have been mixed with the coal in the gas-retorts.
		Distillation of Coal- Tar.Much more important than all applications of crude coal-tar is the industry of separating its constituents from it in a more or less pure form by fractional distillation, mostly followed by purifying processes.
	www.1911encyclopedia.org /C/CO/COAL_TAR.htm (7121 words)

	Coal tar - Wikipedia, the free encyclopedia
		Coal tar is very viscous brown or black liquid, with smell of naphthalene and aromatic hydrocarbons.
		It can be made into coal tar soap, and is used in medicated shampoo to kill and repel head lice and as a treatment for dandruff and psoriasis.
		Coal tar is the liquid by-product of the distillation of coal to make coke.
	www.wikipedia.org /wiki/Coal-tar (171 words)

	Town gas - Wikipedia, the free encyclopedia
		While uses for coal tar developed by the late-1800s, the market for tar varied and plants that could not sell tar at a given time could store tar for future use, attempt to burn it as fuel for the boilers, or dump the tar as waste.
		In the earliest days of MGP operations, coal tar was considered a waste and often disposed into the environment in and around the plant locations.
		Prior to the development of natural gas supplies and transmission in the United States during 1940s and 1950s, virtually all fuel and lighting gas was manufactured, and the byproduct coal tars were at some times an important chemical feedstock for the chemical industries.
	www.wikipedia.org /wiki/Coal-gas (1756 words)

	Coal Tar
		Coal tar and LCD are safely used in creams, lotions, gels, shampoos, and ointments and in combination with lactic or salicylic acid.
		Coal tar may not clear psoriasis as quickly as some other agents, but longer periods of remission occur with its use.
		The use of the paint mill reduces the particles in crude coal tar to create a fine, smooth consistency which will not irritate the patient's skin.
	www.ucsf.edu /dpsl/coaltar.html (162 words)

	ATSDR - ToxFAQs™: Wood Creosote, Coal Tar Creosote, Coal Tar, Coal Tar Pitch, and Coal Tar Pitch Volatiles
		Coal tar creosote is released to water and soil mainly as a result of its use in the wood preservation industry.
		Coal tar, coal tar pitch, and coal tar pitch volatiles are used for roofing, road paving, aluminum smelting, and coking.
		Coal tar and coal tar pitch are usually thick, black, or dark-brown liquids or semisolids with a smoky odor.
	www.atsdr.cdc.gov /tfacts85.html (1100 words)

	Coal Tar Sealcoating Specifications
		Composition: The refined coal tar emulsion seal coat is to consist of a mixture of refined coal tar emulsion, water, additive and aggregate, and be proportioned as shown in Table 2.
		Refined coal tar RT-12, as defined by ASTM D490, is the grade utilized in the manufacture of refined coal tar emulsion pavement sealer.
		The term coal tar has historically referred to the crude coke oven tar produced in the manufacture of steel, and not refined coal tar.
	www.pavementpro.org /coaltar.htm (3461 words)

	coal tar -- Encyclopædia Britannica
		Much coal tar is produced by the steel industry as it produces millions of tons of coke each year to fuel the furnaces used in separating iron from its ores.
		Coal tar, a black, sticky liquid thicker than water, is produced when coal is heated in the absence of air, a process called destructive distillation.
		Coal tar and coke (qq.v.) are obtained as by-products.
	www.britannica.com /eb/article-9024505?tocId=9024505 (741 words)

	Psoriasis - Psoriasis Coal Tar
		Coal tar in one form or another has been used to treat psoriasis for hundreds of years it is an incredibly complex chemical compound and it is till not known
		Exorex is a coal tar based preparation, the oldest form of treatment for psoriasis, having been used for over 50 years.
		Coal Tar One of the oldest treatments for psoriasis, coal tar is effective for mild to moderate plaque psoriasis, and new formulations show promise in treating
	www.psoriasislab.com /PsoriasisCoalTar (657 words)

	Koppers - Coal Tar Pitch
		Coal tar provides superior performance in several areas, giving owners a coal tar roofing system with durability levels that are unique in the roofing industry.
		Koppers Coal Tar Pitch, the traditional roofing grade coal tar, is manufactured to meet Standard ASTM D 450 Type I. Koppers Coal Tar built-up roofing systems consist of alternate layers of Koppers Coal Tar Roofing Pitch and Koppers Reinforcing Felts, topped with a pouring of Koppers Coal Tar into which is embedded an aggregate surfacing.
		Coal tar roofing systems are the time-proven roofing systems for level and low sloped roofs.
	www.koppers.com /htm/PandS_Roof_CTPitch.html (397 words)

	Dave's Psoriasis Info - Coal Tar Index
		Coal tar has been a dermatological treatment for over 150 years, both by itself and in combination with other treatments (mixing steroids with coal tar is not uncommon).
		Coal tar should not be confused with pine tar or juniper tar, both of which were banned in 1990 by the FDA from over-the-counter products for dandruff, seborrheic dermatitis, and psoriasis due to a lack of proof that they were effective.
		While occupational exposure to coal tar (miners, asphalt workers, or chimneysweeps for example) may be responsible for some lung, skin, and scrotal cancers, as of 1996, no relationship between even high therapeutic dosages of coal tar for psoriasis and any form of cancer had been established.
	www.psorsite.com /coaltar.html (1591 words)

	The Coal Tar Epoxy Information Page
		Coal tar epoxies are essentially a mix of coal tar and epoxy resins (and not all epoxy resins are the same).
		Coal Tar epoxies are also famous for protection from moisture, both in the water (such as barge hulls) and when buried underground (such as pipelines and underground tanks).
		Coal tar's ability to withstand moisture (old time sailors sealed their boats with tar pitch) is another important plus, but I think good quality, non coal tar epoxies offer just as good moisture sealing.
	www.epoxyproducts.com /coaltar.html (1132 words)

	coal tar pitch volatiles
		Coal tar photosynthetically changes in sunlight and when it contacts the skin in the presence of sunlight it may cause irritation that takes the form of redness resembling a bad sunburn.
		OSHA calls them Coal Tar Pitch Volatiles (CTPVs) because, by definition, they come from both coke ovens and coal tar, which is derived from the coking process.
		Contained in coal and formed in the destructive distillation (coking) of coal, PAHs volatilize, or turn to vapor, when coal is heated as it is in coke ovens.
	www.lehigh.edu /kaf3/public/www-data/background/ctpv.html (783 words)

	Coal Tar Systems from Garland
		For well over a century now, coal tar has been providing one of the most durable roofing systems available due to its inherent water and chemical resistant properties.
		A More Environmentally Friendly Coal Tar- Independent EPA testing has shown Black• Knight (sold as Black•Stallion® in Canada) to eliminate a minimum of 50% of the volatile emissions typically present in coal tar emissions.
		These products are modified with a revolutionary new polymer which maintains or improves upon the advantages of conventional coal tar while reducing most of the negatives associated with coal tar.
	www.garlandco.com /coal-tar-systems.html (518 words)

	Coal Tar Ban in California?
		Denorex is pulling its coal tar products from shelves in California, and has already changed the active ingredient in one of its shampoos to salicylic acid in a move toward settling the lawsuit.
		Coal tar is an inexpensive and readily available part of my treatment regimen.
		It is possible to imagine a "black market" for coal tar products, with people crossing state lines in search of a stash -- much the same way people leave a dry county in search of a stiff drink.
	www.suite101.com /article.cfm/12798/87390 (450 words)

	Coal Tar
		After applying coal tar, protect the treated area from sunlight for 72 hours, and be sure to remove all coal tar before being exposed to sunlight or using a sunlamp.
		Coal tar is not expected to cause different side effects or problems in older patients than it does in younger persons.
		Before you use coal tar, tell your doctor if you are pregnant or plan to become pregnant.
	www.wholehealthmd.com /refshelf/drugs_view/1,1524,682,00.html (512 words)

	C&EN: From Coal Tar to Crafting a Wealth of Diversity
		And interest in utilizing coal in a clean and efficient manner to displace petrochemical feedstocks was revived with Eastman Chemical's start-up in 1983 of a coal-to-acetyl chemicals plant in Tennessee.
		And the process of heating coal to make coke-a raw material in the manufacture of high-carbon steel-also produces a number of chemically useful gases and by-products: coal tar, ammonia, and benzene.
		Coal in Britain and subsequently in many other countries provided the energy and steam to run the railroad locomotives and steamships of the early-19th century, and it provided the energy to heat homes.
	pubs.acs.org /hotartcl/cenear/980112/coal.html (10866 words)

	Coal Tar Final
		The fraction of coal tar in applied shampoo that remains as a residue (F) is that portion of applied shampoo that remains in contact with the skin.
		The carcinogenic weight-of-evidence of pharmaceutical grade coal tar was evaluated by considering two types of evidence: primary evidence consisting of epidemiology and animal studies, and secondary evidence consisting of pharmacokinetic and pharmacodynamic studies.
		Clear evidence exists that coal tar is carcinogenic to mouse skin and that the PAH (polycyclic aromatic hydrocarbon) fraction is the dominant contributor to carcinogenicity.
	www.tera.org /peer/final62000.htm (15677 words)

	Safety and Health Topics: Coal Tar Pitch Volatiles
		Coal tar pitch volatiles (CTPVs) are composed of various chemical vapors that become airborne during the heating of coal tar pitch.
		Coal tar pitch is usually a thick, black or dark-brown liquid or semisolid that has a smoky odor.
		Other names for coal tar pitch volatiles include coal tar pitch, pitch, pitch oil, topped coal tar, coal tar pitch >351ºC (AWPI), and creosote.
	www.osha.gov /SLTC/coaltarpitchvolatiles (105 words)

	Buildings: Keeping on Top of It.(coal tar roofing)(Brief Article)@ HighBeam Research
		Coal tar built-up roofing has proven superior performance for more than 140 years.
		When using asphalts and coal tars in conjunction with each other, you should note that the two...
		Therefore, be aware of the most commonly encountered maintenance requirements of a coal tar membrane system.
	www.highbeam.com /library/doc0.asp?DOCID=1G1:77757275 (180 words)

	Coal Tar Shampoo Litigation
		In addition, it is not clear how the type of coal tar used in this study relates chemically to the types used in OTC drug products, which must meet the monograph and compendia1 (United States Pharmacopeia) standards.
		A February 22, 2001 letter from the Food and Drug Administration rejected a citizen's petition filed by Perry Gottesfeld, seeking to have coal tar containing dandruff shampoos restricted to prescription status, and carry cancer warnings.
		The consent judgment contained a limitation on the concentrations of both coal tar solution and benzo(a)pyrene; if reformulation were unsuccessful, the products would bear Prop 65 warnings.
	www.calprop65.com /coaltar.html (460 words)

	Coal Ties Tar Science Panel, Groups Say ~ Newsroom ~ News from CSPI
		A newly appointed National Academy of Sciences (NAS) panel that will study the environmental impact of disposing coal combustion waste in mines is rife with members who have ties to the mining, coal and electric utility industries, according to 42 environmental organizations.
		Coal ash can leach 17 heavy metals, including arsenic, mercury, lead, cadmium, selenium, as well as boron, sulfate and chloride.
		Industry claims the disposal is safe, but many scientists point to significant damage from coal combustion waste when toxic chemicals from the ash escape to water.
	www.cspinet.org /new/200410261.html (471 words)

	Psoriasis Hall of PShame
		Since a 1990 OTC ingredients ban however, only coal tar and salicylic acid may be legally claimed to have a benefit for the treatment of psoriasis.
		The carcinogenic effects of coal tar are not mentioned at all.
		While the safety of standard coal tar is still controversial in medical circles, IMX has offered no evidence of safety testing for this "enhanced" penetration.
	www.pinch.com /skin/pshame.html (8476 words)

	Summers Labs: Cutar Emulsion - coal tar solution to help stop itching, redness and scaling caused by psoriasis.
		Basically the goals of using a coal tar product like Cutar and topical steroids are the same: to control itching, scaling, inflammation and redness.
		This combination delivers both tar and very effective moisturizing action many patients have found to be an extremely effective, but very safe, approach for controlling their psoriasis.
		Patients who get relief from tar, generally stay better for longer periods of time, during and after their course of treatment with tar.
	www.sumlab.com /Shop/psoriasis/cutar.asp (481 words)

	HSE Industry sector - Pesticides: Revocation of Approvals fo...
		Creosote and coal tar creosote are complex mixture of coal tar derivatives.
		Creosote and coal tar creosote has been used for the preservation of wood in the UK and in Europe for many years.
		New information has led the EU to believe that creosote/coal tar creosote may have a greater potential to cause cancer than previously thought and as a precautionary measure the EU has decided to take action to prohibit the use of creosote/coal tar creosote wood preservatives by the general public.
	www.hse.gov.uk /pesticides/creosote.htm (2981 words)

	Coal Tar Products
		Antipyrin, antifebrin, phenacetin, antikamnia, triasol and dozens of other preparations are obtained by the distillation of coal tar.
		During the last thirty years coal tar preparations have become very popular as pain-killers and hypnotics.
		His investigations and laboratory experiments proved that most of the foods sold in grocery stores were adulterated not only with cheap ingredients, but also with poisonous coloring materials and antiseptics, most of which were found to be coal tar preparations.
	www.irisandyou.com /coal-tar-products.htm (531 words)

	COAL TAR PITCH REPORT
		In addition to updating the prices for coal tar and coal tar pitch in the major producing/consuming regions, Pace's Coal Tar Pitch Report discusses the developments in the related industries of aluminum and crude steel, and keeps our clients current on the key issues affecting pitch supply and demand.
		The study, which is still available, provided detailed discussions of the pertinent issues affecting coal tar pitch markets.
		This subscription publication was initiated in response to the uncertainty facing the coal tar pitch market.
	www.paceconsultants.com /Sub_Services/More_Information/coaltar.php (306 words)

	Coal Tar Remover
		Allow Coal Tar Remover to remain on tank surfaces for 30 minutes before rinsing away with fresh or sea water.
		GYRO Coal Tar Cleaner is a high solvency base cleaner.
		Coal Tar Remover contains chlorinated hydrocarbons and cresols.
	www.purgit.com /Gyro/coaltar.htm (205 words)

	Cancer warnings on psoriasis treatments!
		The NPF and its Medical Advisory Board recognize that OTC coal tar shampoos and skin-care products are a valuable and relatively inexpensive therapeutic option for people who have psoriasis, especially those who have mild to moderate involvement.
		As part of the legal proceedings, the NPF and the U.S. Food and Drug Administration (FDA) submitted letters on behalf of the coal tar manufacturers stating there is no scientific evidence that coal tar products cause cancer, and that labels on the products suggesting they are carcinogenic would put them in violation of FDA guidelines.
		According to the FDA, OTC products with coal tar concentrations between 0.5% and 5% are safe and effective for psoriasis.
	www.health-report.co.uk /psoriasis_cancer_warnings.html (907 words)

	People's Daily Online -- Foundation laid for China's largest coal tar project
		Making full use of the opulent coal tar resources in Shandong Province with the adoption of the world's advanced technologies, equipment and management, the joint venture will produce and deal with market-needed series coal products, including light oil, carbolic oil, crude carbolic acid, industrial naphthalene, wash oil and carbon black oil.
		With a total investment of 2 billion yuan and three phases of construction, the project will become the largest deep-processing enterprise in the country to produce crude carbolic acid and coal tar with annual sales income reaching 2 billion yuan and profit payments and tax turnover of 300 million yuan.
		Japan's JFE Steel Corporation is a large-size iron and steel enterprise group in the world and was ranked No 4 in the world's iron and steel industry in 2004.
	english.peopledaily.com.cn /200510/13/eng20051013_214199.html (250 words)

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