Chrysene
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Chrysene
structure -
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CAS No:
218-01-9
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Formula:
C18H12
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Chemical Name:
Chrysene
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Synonyms:
Chrysene;1,2-Benzphenanthrene;Benzo[a]phenanthrene;1,2-Benzophenanthrene;NSC 6175;[4]Phenacene;27274-05-1
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CAS No:
Description
Chrysene is a high molecular weight (HMW), polycyclic aromatic hydrocarbon (PAH) known for its recalcitrance and carcinogenic properties[1].
Characteristics
0
5.91
Chrysene appears as a crystalline solid. Denser than water and insoluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Toxic by ingestion. Used to make other chemicals.
1.274 g/cm3 @ Temp: 20 °C
258.2 °C
448 °C
-17℃
1.771
H2O: insoluble
2-8°C
4.3 at 25 °C (de Kruif, 1980)
Acute LC 50 for Neanthes arenaceodentata >50 μg/L (Rossi and Neff, 1978).
Safety Information
III
9
UN 3077 9/PG 3
3
45-50/53-68-40-67-66-36-11-52/53-36/37/38
53-45-60-61-36/37-26-16-24/25-23
GC0700000
T,N,Xn,F
Separated from strong oxidants. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Stable. Combustible. Incompatible with strong oxidizing agents.
P201-P273-P281-P308 + P313-P501
H341-H350-H410
Chrysene Use and Manufacturing
Extracted from coal char or warm pitch distillation. The distillate fraction cut from the distillation of the pitch distillate is mixed with a mixed solvent of benzene and trimethylbenzene in a ratio of 1:0.5 or 1:1, and extracted at a temperature of 110-130°C for 3 hours, with stirring during extraction. After about 20h of precipitation, the crystals were separated by vacuum filtration and dried to obtain industrial production. Recrystallize twice with 1:1 wash oil. The obtained crude product is dissolved in clean wash oil in the presence of 2%-5% maleic anhydride and heated to 125-135℃. Then it is crystallized at 20-25°C, separated by a centrifuge, washed with benzene and dried to obtain a product with a purity of 85%-90%.
Occurs in coal tar. Is formed during distillation of coal, in very small amount during distillation or pyrolysis of many fats and oils. Chrysene is one of the basic polycyclic aromatic hydrocarbon (PAH) which is toxic environmental pollutant and consistently exposed to sunlight. However , little information is available on its photogenotoxicity. Listen The objective of the present study was to analyze the effects of Chrysene, under environmental intensity of UVB (0.6 mW/cm2) in human skin epidermal cell line (HaCaT).
Computed Properties
Molecular Weight:228.3
XLogP3:5.7
Exact Mass:228.093900383
Monoisotopic Mass:228.093900383
Heavy Atom Count:18
Complexity:264
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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