Chrysene

• Benzo [a ] phenanthrene
• 1,2- benzophenanthrene

Colorless, rhombic crystals with blue fluorescence

Fixed

1.274 g · cm -3 ( 20 ° C)

256 ° C

448 ° C

• Practically insoluble in water (20 mg · l -1)
• Very poor in ethanol ( 770 mg · l -1)
• Poorly in toluene (2.1 g · l -1)
• Slightly soluble in diethyl ether, and glacial acetic acid
• Readily soluble in boiling benzene and toluene

Risk

1000 mg · kg -1 ( LD50, mouse, ip)

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Chrysene is a polycyclic aromatic hydrocarbon consisting of four fused benzene rings.

Occurrence

Chrysene occurs in coal and brown coal tar, in the organic mineral Curtisit and in tobacco smoke. The result is also of incomplete combustion.

Properties

Chrysene shows in UV light, strong fluorescence. The logarithm of the octanol - water partition coefficient log Kow of chrysene is 5.9.

Use

It is used for the production of UV - filters, sensitizers and dyes.

Due to its blue fluorescence, it is suitable for the marking of objects.

Biological effect

Chrysene effect in animal experiments as well as most PAHs carcinogenic. For aquatic organisms chrysene is highly toxic and can be enriched by them through bioaccumulation.