What is the chemical name of anthracene?
What is the chemical name of anthracene?
Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C 14 H 10, consisting of three fused benzene rings. It is a component of coal tar. Anthracene is used in the production of the red dye alizarin and other dyes.
How is anthanthracene applied?
Anthracene was applied at a dose of 15.1 nmol/sq cm (2.7 ug/sq cm) as part of a mixture of 13 PAHs dissolved as a suspension in lubricating oil or dissolved in 30 uL of acetone. In the latter case, following evaporation of the solvent, a few drops of artificial sweat were applied to the residue on the skin surface.
How does anthracene photodimerize?
Anthracene photodimerizes by the action of UV light: The dimer, called dianthracene (or sometimes paranthracene), is connected by a pair of new carbon-carbon bonds, the result of the [4+4] cycloaddition. It reverts to anthracene thermally or with UV irradiation below 300 nm. Substituted anthracene derivatives behave similarly.
What percentage of anthracene is present in tar?
High-temperature coal tar contains, on average, 1.5% of anthracene. Continuous tar distillation concentrates the anthracene in the fraction boiling between 300 and 360 deg C (anthracene oil I). This oil amounts to 15 – 20% of the raw tar and contains about 7% anthracene; it is cooled to 20 – 30 deg C…
Is anthracene toxic to humans?
Although a large body of literature exists on the toxicity of PAHs, data for anthracene are limited. Prolonged exposure causes variety of topical and systemic adverse reactions. Carcinogenicity bioassays with anthracene generally gave negative results. ANTHRACENE is a white to yellow solid with a weak aromatic odor.
What is cycloaddition of anthracene?
Cycloadditions. Anthracene photodimerizes by the action of UV light: The dimer, called dianthracene (or sometimes paranthracene), is connected by a pair of new carbon-carbon bonds, the result of the [4+4] cycloaddition. It reverts to anthracene thermally or with UV irradiation below 300 nm.
