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

( Pine tar has historically also been used for this purpose, but has been banned as a medical product by the FDA, since no evidence was submitted proving it is effective.

The residue from the distillation of high-temperature coal tar, primarily a complex mixture of three or more membered condensed ring aromatic hydrocarbons, was listed on 28 October 2008 as a substance of very high concern by the European Chemicals Agency.

In the coal gas era, there were many companies in Britain whose business was to distill coal tar to separate the higher-value fractions, such as naphtha, creosote and pitch.

Before the destruction, the Dead Sea was a valley full of natural tar pits, which was called the vale of Siddim.

The India ink used in ancient India since at least the 4th century BC was called masi, and was made of burnt bones, tar, pitch, and other substances.

Each overlap was stuffed with wool or animal hair or sometimes hemp soaked in pine tar to ensure water tightness.

The hull was waterproofed with animal hair, wool, hemp or moss drenched in pine tar.

For example, soot was suggested to be a cause of cancer as early as 1775, and coal tar was demonstrated to cause cancer in 1915.

Subsequently in the 1930s the carcinogen component in coal tar was identified as a polyaromatic hydrocarbon ( PAH ),

The fuel for the Molotov cocktail was refined to a slightly sticky mixture of gasoline, kerosene, tar, and potassium chlorate.

The original design of the Molotov cocktail was a mixture of ethanol, tar and gasoline in a bottle.

His preserved head ( dipped in tar ) was placed on a pike atop London Bridge.

During the 17th century, after winning wars against Denmark, Russia, and Poland, Sweden – Finland ( with scarcely more than 1 million inhabitants ) emerged as a great power by taking direct control of the Baltic region, which was Europe's main source of grain, iron, copper, timber, tar, hemp, and furs.

The cartoon depicted four leading Republicans trying to push an elephant ( the traditional symbol of the Republican Party ) to stand on a teetering stack of ten tar buckets, the topmost of which was labeled " McCarthyism ".

Before printer's magenta was invented in the 1890s for CMYK printing, and electric magenta was invented in the 1980s for computer displays, these two artificially engineered colors were preceded by the color displayed at right, which is the color originally called fuchsine made from coal tar dyes in the year 1859.

* How the color magenta was discovered in 1859 through research into coal tar ( aniline ) dyes.

In 1865 the first " PCB-like " chemical was discovered, and was found to be a byproduct of coal tar.

It was historically made of the same materials as running rigging, only coated in tar for added strength and protection from the elements.

These defeats progressively led to disenchantment of the population with the regime, that already was in an awkward position because it was also brushed with the tar of the depredations of the French " sister republic " that mainly viewed the Batavian Republic as a milch cow, both collectively ( in its demands for loans at very low interest rates ) and individually ( in the demands of French officials for bribes and other extortions ).

Solvents can be either pure substances like ether or ethyl alcohol, or mixtures, such as the paraffinic solvents such as the various petroleum ethers and white spirits, or the range of pure or mixed aromatic solvents obtained from petroleum or tar fractions by physical separation or by chemical conversion.

Heavy crude oil, which is much more viscous than conventional crude oil, and tar sands, where bitumen is found mixed with sand and clay, are becoming more important as sources of fossil fuel.

Paving materials, both coal and petroleum-based, are mixed at somewhat lower temperatures ( 221 ° F ( 105 ° C ) for coal tar, 302-357 ° F ( 150-180 ° C ) for bitumen ), but even then liquid would still be hot enough to cause severe injuries.

" Road metal " later became the name of stone chippings mixed with tar to form the road surfacing material tarmac.

Generally a wet pulp from the inner bark is applied to the wounds or pine tar can be mixed with beeswax or butter and used as a salve to prevent infection.

Pine tar mixed with beer can be used to remove tapeworms ( flat worms ) or nematodes ( round worms ) and pine tar mixed with sulfur is useful to treat dandruff.

The residue cake from the mustard oil pressing is mixed with sand, mustard oil and ( sometimes ) tar.

The importance of subjecting railway sleepers to some preserving process was insisted on by Dr. Shiga, and a company was formed to use creosote oil mixed with Zinc compound ; but owing to the lack of tar oil, the enterprise was in a precarious condition, when Dr. Shimomura was enabled to put a large quantity of creosote oil to its use, resulting in the formation of the Toyo Wood Preserving Company.

The pop science TV program MythBusters attempted to model Archimedes ' feat by using mirrors to ignite a small wooden boat covered with tar, with only partial success — they found it too difficult to focus light from their hand-held mirrors onto a point small enough to ignite the boat.

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.

According to the National Psoriasis Foundation and the FDA, coal tar is a valuable, safe and inexpensive treatment option for millions of people with psoriasis and other scalp or skin conditions.

The NPF states that coal tar contains approximately 10, 000 chemicals, of which only about 50 % have been identified, and the composition of coal tar varies with its origin and type of coal ( for example ,: lignite, bituminous or anthracite ) used to make it.

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

Compressed archives are typically created by assembling collections of files into a single tar archive, and then compressing that archive with gzip.

In addition, beaches along the entire ' Al Jubayl coastline were covered with oil and tar balls.

# Hydrocarbon generation and migration with the presence of: a ) numerous DHIs on seismic, including gas chimneys, flat spots, bright spots, phase changes and chemosynthetic reefs ; b ) gas sniffer anomalies, involving ethane / iso-butane in the southeast and propane / normal butane / total hydrocarbon in the north and northeast ; c ) UV fluorescence anomalies, especially over the wells and in the southeast ; and d ) 4 types of beach-stranded tar that correlate to the local source rock stratigraphy.

When spoken near a candle flame, the flame will flicker more after the words par, tar, and car are articulated, compared with spar, star, and scar.

The Labour Party leaders did not approve and feared it would tar the party with the image of radicalism, for the Cominterm in Moscow had sent instructions for Communists to aggressively promote the strike.

" In the winter, the sparsely rationed oil didn't adequately heat the tar paper-covered pine barracks with knotholes in the floor.

Brighton has a horse-racing course, Brighton Racecourse, with the unusual feature that when the full length of the course is to be used, some of the grass turf of the track has to be laid over the tar at the top of Wilson Avenue, a public road, which therefore has to be closed for the races.

Sealants include paint, plastic foams, films and aluminum foil, felts or fabric mats sealed with tar, and layers of bentonite clay, sometimes used to seal roadbeds.

His experiments with one of the by-products of tar, naphtha, led to his invention of waterproof fabrics, the essence of his patent being the cementing of two thicknesses of natural ( India ) rubber together, the rubber being made soluble by the action of the naphtha.

* 800 – The streets of Baghdad are paved with tar.