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Coal tar

Coal tar structure

CAS No:
8007-45-2
Chemical Name:
Coal tar
Synonyms:
Coal tar;Tar,coal;Zetar;Estar;Lavatar;Tar,coal,colorless purified;Tar,coal,purified colorless;Coal tar extract;Tar;Estar (skin treatment);Tarcron 180;Coal tar ointment;Pixalbol;Tar,coking;Coking tar;KC 261;Coke-oven tar;Tarcron 180L;Tarcron 230;RT 7;RT 7 (coal tar);AWWA;Bituflex;Tarcron 180N;AD-MTOHV;8050-43-9;8050-41-7;8055-92-3
Categories:
Cosmetic Ingredient > Anti-seborrheic

Description

Coal tars are by-products of the destructive distillation (carbonization) of coal to produce coke or gas. The composition and properties of a coal tar depend primarily on the temperature of the carbonization and to a lesser extent on the nature (source) of the coal used as feedstock. In general, coal tars are complex combinations of hydrocarbons, phenols, and heterocyclic oxygen, sulfur, and nitrogen compounds. Over 400 compounds have been identified in coal tars, and as many as 10,000 may actu

Characteristics

Density：

1.18~1.23

Water Solubility：

Not miscible or difficult to mix with water.

Safety Information

safety instructions：

53-45

Marks：

Coal tar Use and Manufacturing

Coal tars and coal-tar pitches have many uses in industry and in consumer products. Coal tars are used primarily for the production of refined chemicals and coal-tar products, such as creosote, coal-tar pitch, and crude naphthalene and anthracene oils from the distillation of crude coal tar. Coal tar has been used as a fuel in open-hearth furnaces and blast furnaces in the steel industry, as a binder and filler in surface-coating formulations, and as a modifier for epoxy-resin surface coatings. U.S. Pharmacopeia–grade coal tar is approved for use in denatured alcohol (IARC 1985). Coal-tar preparations have been used for many years to treat various skin conditions, such as eczema, psoriasis, seborrheic dermatitis, and dandruff. Both prescription and nonprescription preparations are available and include cleansing bars, creams, gels, lotions, ointments, shampoos, and other topical solutions and suspensions (DermNet NZ 2010). Coal tar is also registered as an active ingredient in pesticides with the U.S. Environmental Protection Agency (EPA 2003).
Coal-tar pitches are used primarily as the binder for aluminumsmelting electrodes (IARC 1984). They are also used in roofing materials, to impregnate and strengthen refractory brick (for lining industrial furnaces), and in surface coatings, such as pipe-coating enamels and black varnishes used as protective coatings for industrial steelwork and as antifouling paints for boats. Hard pitch is used as a binder for foundry cores. Coke-oven pitch is used to produce pitch coke, which is used as the carbon component of electrodes, carbon brushes, and carbon and graphite articles. Distillation fractions and residues from high-temperature coal tars are used for road paving and construction and in the production of naphthalene, recovery of benzene, production of anthracene paste, briquetting of smokeless solid fuel, impregnation of electrodes and fibers, and manufacture of electrodes and graphite (IARC 1985).

Drug Function and Efficacy

Anti-Psoriasis and Anti-Dandruff, inhibits excessive proliferation of epidermal cells, reduces inflammation, relieves itching, and has anti-fungal properties

This ingredient has been used in drugs with the following functions (note: it does not mean that the ingredient itself has the following health functions)

Related Drugs

DERMABON MULTI SYMPTOM PSORIASIS CONTROL- coal tar_soap
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THERAPEUTIC T PLUS- coal tar_shampoo
Manufacturer	Chain Drug Marketing Association

ANTI-DANDRUFF- coal tar_shampoo
Manufacturer	Strategic Sourcing Services LLC

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