The aromatic hydrocarbons are a significant subset of this category. It is also used as a smokescreen, scintillation counter crystals, and inorganic semiconductor research.Ī polycyclic aromatic hydrocarbon (PAH) is a hydrocarbon with many aromatic rings and is a chemical compound containing only carbon and hydrogen. In the presence of light, it is particularly vulnerable to deterioration. Tobacco smoke and consumption of food tainted with combustion materials are the primary sources of human exposure.Īnthracene is non-carcinogenic, as according to several studies it "consistently gives negative results in numerous in vitro and in vivo genotoxicity experiments." Since crude samples were tainted with other polycyclic aromatic compounds, early studies suggested otherwise. 9,10-dihydroxy anthracene is an example of anthracene with several hydroxyl groups.ĭuring combustion processes, anthracene, like many other polycyclic aromatic hydrocarbons, is produced. 1-hydroxyanthracene and 2-hydroxyanthracene are hydroxylated derivatives of phenol and naphthols, and hydroxyanthracene (also known as anthrol and anthracenol) is pharmacologically active. Anthracene is also used in anthraquinone use.Īnthracene derivatives are used in a number of applications. The anthracene tracer allows for UV inspection of the conformal coating. It is present in wood preservatives, insecticides, and coating materials.Īnthracene is widely used as a UV tracer in printed wiring board conformal coatings. The emission spectrum of anthracene peaks between 400 and 440 nm. Plastics, such as polyvinyl toluene, can be doped with anthracene to create a water-equivalent plastic scintillator for use in radiation therapy dosimetry. The air and water sensitive orange solid Mg(C 14 H 10 )(thf) 3 is made by heating a suspension of magnesium in a thf solution of anthracene.Īnthracene is primarily converted to anthraquinone, a dye precursor.Īnthracene, an organic semiconductor with a large bandgap, is used as a scintillator for high-energy photon, electron, and alpha particle detectors. Magnesium anthracene is an organomagnesium compound that is almost always isolated as tetrahydrofuran (THF) adduct with three ligands. The presence of oxygen has an effect on the reaction.
The behaviour of substituted anthracene derivatives is similar. Thermally or with UV irradiation below 300 nm, it reverts to anthracene. The 4+4 cycloaddition results in a pair of new carbon-carbon bonds connecting the dimer, which is known as Dianthracene (or sometimes paranthracene). The action of UV light causes anthracene to photo dimerize. Elbs, on the other hand, misinterpreted the reaction product due to a lack of understanding of naphthalene structure. The reaction is named after Karl Elbs, a German chemist, who also invented the Elbs oxidation. The Elbs reaction is an organic reaction in which an ortho methyl-substituted benzophenone is pyrolyzed to produce a condensed polyaromatic. With over 700 chemicals identified, anthraquinone is the biggest group of natural pigments. They are the extensive category of naturally occurring quinones, together with some of the most crucial native colourants like alizarin, purpurin, munjistin, emodin, chrysophanol, aloe-emodin, physcion, rhein, etc. Anthraquinone may be formed from direct combustion processes in motor-operated vehicles and engines. Anthracene with two carbon-oxygen double bonds at the two middle carbons of the molecule is easily recognised as anthraquinone. It is the three rings that were bound together, as well as the network of alternating double and single bonds that ran all the way around them.Īnthracene is converted to anthraquinone when it is reacted with an oxidising agent like hydrogen peroxide. A polycyclic refers to a molecule with more than one ring, aromatic refers to a molecule with alternating double-single bonds all over the ring structure, and hydrocarbon refers to a molecule composed entirely of carbon and hydrogen atoms. Three benzene rings are fused together to form anthracene, a polycyclic aromatic hydrocarbon. This article will study the use of anthracene in detail. It is colourless but fluoresces blue (400–500 nm peak) when exposed to ultraviolet light. Anthracene is used to make the red dye alizarin as well as other dyes. Anthracene is a three-fused benzene ring solid polycyclic aromatic hydrocarbon (PAH) with the formula C 14 H 10. Anthracene is a colourless crystalline aromatic hydrocarbon utilised in the chemical industry that is created by distilling natural crude oils.
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