Coal tar is a brown or black liquid of extremely high viscosity.

Coal tar is among the by-products when coal is

Coal tar is incorporated into some parking-lot sealcoat products, used to protect and beautify the underlying pavement.

Coal tar was formerly used as one of the primary ingredients of Tarmacadam pavements, when mixed with ironworks slag.

Coal tar is also used to manufacture paints, synthetic dyes, and photographic materials.

When used in the extemporaneous preparation of topical medications, it is supplied in the form of Coal Tar Topical Solution USP, which consists of a 20 % w / v solution of coal tar in alcohol, with an additional 5 % w / v of polysorbate 80 ; this must then be diluted in an ointment base such as petrolatum.

Coal tar concentrations between 0. 5 % and 5 % are safe and effective for psoriasis, and no scientific evidence suggests that the coal tar in the concentrations seen in non-prescription treatments is carcinogenic.

Coal tar causes increased sensitivity to sunlight, so skin treated with topical coal tar preparations should be protected from sunlight.

* Liquor Picis Carbonis, Latin for Coal tar solution

Coal was heated in a retort and the crude gas was passed through a condenser to remove tar and a scrubber to remove other impurities.

Coal tar was subjected to fractional distillation to recover various products, including

Coal tar is a keratoplastic causing the skin to shed dead cells from the top layer and slow skin cell growth.

* Coal tar ( can be very effective, but though no significant increased risk of cancer in human treatment with coal tar shampoos has been found caution is advised since coal tar is carcinogenic in animals, and heavy human occupational exposures do increase cancer risks )

Coal tar was subjected to fractional distillation to recover various products, including

* Coal tar waste / sludge

** Coal tar sludge has no resale value and so was always dumped.

Coal tar and coal tar sludges are frequently denser than water and are present in the environment as a dense non-aqueous phase liquid.

Coal is used to produce coal gas and coal tar and coke.

Coal tar pitch is often confused with asphalt, and asphalt with coal tar pitch.

In 1952, the European Coal and Steel Community was launched, placing the coal and steel production of France, West Germany, Italy and Benelux under a supranational High Authority.

But fusion power in the Coal Sack was what had triggered all the trouble in the first place -- and he already had an Angel aboard.

Coal mined in Aberdare parish rose from in 1844 to in 1850, and the coal trade, which after 1875 was the chief support of the town, soon reached huge dimensions.

Under the Coal Industry Nationalisation ( Superannuation ) Regulations of 1950, a pension scheme for mineworkers was established.

As historian Eric Shaw noted of the years following nationalisation, the electricity and gas supply companies became “ impressive models of public enterprise ” in terms of efficiency, and the National Coal Board was not only profitable, but working conditions for miners had significantly improved as well.

The Common Assembly of the European Coal and Steel Community ( the predecessor of the present day European Parliament ) first met on 10 September 1952 and the first Christian Democratic group was unofficially formed the next day, with Maan Sassen as President.

Coal production was down 60 %, which had cascading negative effects on railroads, heavy industry, and heating.

Italy was a founding member of the European Union's predecessor, the European Coal and Steel Community.

Coal mining was very dangerous owing to the presence of firedamp in many coal seams.

It was one of the six founding members of the European Coal and Steel Community ( ECSC ) in 1952 and of the European Economic Community ( EEC ) in 1957.

It was one of the first countries to start European integration, through the Benelux in 1944 and the European Coal and Steel Community in 1952.

His father worked for the National Coal Board and his mother was a singer with the Welsh National Opera.

Before the establishment of the present European Commission, there was the High Authority of the European Coal and Steel Community.

: Much of the violence in this national strike was not specifically racial, but in Iowa, where the employees of Consolidation Coal Company ( Iowa ) refused to join the strike, armed confrontation between strikers and strike breakers took on racial overtones because the majority of Consolidation's employees were African American.

Coal was a sick industry ; the best seams were being exhausted, raising the cost.

Coal production was almost 19 million tons in 2003, compared with 9. 6 million tons in 1999.

On May 12, 1921, just two months into Harding's presidency, violence was initiated near Matewan, West Virginia, between private detectives, on behalf of the Stone Mountain Coal Company, and United Mine Workers union members who had been fired from their jobs and were being evicted from company-owned housing.

The album was nonetheless a personal high point for Partridge, who ranks songs such as "( The Everyday Story of ) Smalltown " and " Train Running Low on Soul Coal " amongst his best work.

The principle was at the heart of the European Coal and Steel Community ( ECSC ) in the Treaty of Paris ( 1951 ), following the " Schuman Declaration " and the later the Treaties of Rome establishing the European Economic Community ( EEC ) and the European Atomic Energy Community ( EAEC ).

He was deeply critical of a bureaucratic-institutional integration of Europe on the model of the European Coal and Steel Community.

In 1846, the Cieszkowski Coal Mine was opened, named after Józef Cieszkowski.

* Treaty of Paris ( 1951 ), established the European Coal and Steel Community ; though now expired, it was one of the foundational treaties of the European Union

* Tennessee Coal, Iron and Railroad Company in Birmingham, Alabama, bought by U. S. Steel in 1907 ; U. S. Steel was removed from the Dow Jones Industrial Average in 1991.

Coal was used to run furnaces for the melting of metal ore. Semi-solid hydrocarbons from seeps were also burned in ancient times, but these materials were mostly used for waterproofing and embalming.