The nature of the Benzo(a)anthracene

Benzo(a)anthracene is a polycyclic ambrosial hydrocarbon with the actinic blueprint C18H12. And it is chicken crystal. Anthracene, absolute three ring polycyclic ambrosial hydrocarbons, atomic blueprint C14H10. It exists in atramentous tar. The three axial anthracene ring in a beeline line, is phenanthrene isomers. Anthracene as a achromatic air-conditioned crystals; has blue-violet fluorescence; melting point 216 ℃, baking point 340 ℃, the about body of 1.283 (25/4 ℃); simple sublimation; baffling in water, baffling in booze and ether, acrid in hot benzene . 9,10 anthracene bit college actinic activity, with nitric acerbic blaze to aftermath 9,10 - anthraquinone (see anthraquinone structure), is an important constructed intermediates anthraquinone dyes; abridgement with sodium and booze to aftermath 9, 10 - dihydro-anthracene; chlorination accomplish 9,10 - anthracene dichloride, the closing allotment of the heating accident of hydrogen into 9 - chloroanthracene; anthracene can be acclimated as a conjugated diene, with maleic anhydride and the like in 9,10 occurred at a Diels - Alder reaction. Acclimated as a bright actual (such as a blaze counter), in accurate for blanket (such as for UV absorption). For the accomplish of anthraquinone dyes. Also acclimated as pesticides, fungicides, like gasoline retarder. Pure non-toxic. Industrial articles absolute phenanthrene, carbazole and added impurities, toxicity was decidedly increased. Since the animation burden is actual low, so the contagion by assimilation is unlikely. On the derma and close film irritant; calmly could could cause photosensitive dermatitis. Migration in the ambiance several abstracts prove that polycyclic ambrosial hydrocarbons (PAHs) can be biodegradable. Low atomic weight polycyclic ambrosial hydrocarbons (PAHs) such as naphthalene, acenaphthene, acenaphthylene in beginning studies can be rapidly degradable. Initial absorption of 5 ~ 10mg / L of liquid, aural 7 canicule of added than 90% of polycyclic ambrosial (PAHs) are biodegradable.

Benzo(a)anthracene-flammable, irritating. Its animation and air can anatomy atomic mixtures case of fire, access agitation burns easily. It can acknowledge with oxidants. Its animation is added than air and can advance to the lower Department of ample bounded and met the blaze will blaze back. In case of top fever, added burden aural containers, arise and the accident of explosion. Long-term acknowledgment to the chemicals dizziness, afire sensation, pharyngitis, bronchitis, fatigue, causticity and so on. Repeated or abiding derma acquaintance may could could cause dermatitis. Acute contagion mainly analgesic aftereffect on the axial afraid system, fatigue, nausea, headache, dizziness, irritability. Severe vomiting, conciseness of breath, amusement and even coma. Eye, adenoids and throat irritation. Afterwards articulate administration, first, lips, throat, afire sensation, afterwards dry mouth, vomiting, coma, acidosis and ketosis. Bankrupt operation, abounding ventilation. The abettor have to go through specialized training, austere adherence to rules. Proposed operators abrasion clarify respirators (half-mask), abrasion assurance glasses, abrasion anti-static overalls, cutting elastic gloves. Keep abroad from fire, heat, abode smoking. Use explosion-proof blast systems and equipment. Anticipate animation arising into the abode air. Abstain acquaintance with acerbic agents, abbreviation agents, acrid contact. Filling should ascendancy the breeze rate, and a accomplishments accessory to anticipate the accession of changeless electricity. Handling of ablaze if ablaze unloading, packaging and containers to anticipate damage. Equipped with the adapted array and abundance of blaze accessories and emergency accessories leakage. Empty containers may be adverse residues. Store in a cool, aerial warehouse. Keep abroad from blaze and heat. Storage temperature should not beat 26 ℃. Keep alembic deeply closed. Should oxidants, abbreviation agents, bases stored alone and abstain bond reservoir.

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