Chryses

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Structural formula
Structure of chryses
General
Surname Chryses
other names
  • Benzo [ a ] phenanthrene
  • 1,2-benzophenanthrene
Molecular formula C 18 H 12
Brief description

colorless, rhombic crystals with blue fluorescence

External identifiers / databases
CAS number 218-01-9
EC number 205-923-4
ECHA InfoCard 100.005.386
PubChem 9171
Wikidata Q415465
properties
Molar mass 228.29 g mol −1
Physical state

firmly

density

1.274 g cm −3 (20 ° C )

Melting point

256 ° C

boiling point

448 ° C

solubility
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
08 - Dangerous to health 09 - Dangerous for the environment

danger

H and P phrases H: 350-341-410
P: 201-273-281-308 + 313-501
Authorization procedure under REACH

particularly worrying : carcinogenic ( CMR ), persistent, bioaccumulative and toxic ( PBT ), very persistent and very bioaccumulative ( vPvB )

Toxicological data

1000 mg kg −1 ( LD 50 ,  mouse ,  ip )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Chrysene is a polycyclic aromatic hydrocarbon , which consists of four condensed benzene rings and belongs to the phene class of substances .

Occurrence

Chrysene comes in stone and brown coal , in the organic mineral Curtisit and in tobacco smoke before. It also arises from incomplete combustion .

properties

Chrysene shows strong fluorescence in UV light . The logarithmic octanol-water partition coefficient log K ow of Chrysen is 5.9.

use

It is used to manufacture UV filters , sensitizers and dyes .

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

Biological effect

Chrysene, like most PAHs, is carcinogenic in animal experiments ; According to Regulation (EC) No. 1272/2008 (CLP Regulation), it is classified as category 1 B carcinogenic. Chrysene is very poisonous for organisms living in water and can be enriched by them through bioaccumulation . It is therefore to the CLP Regulation as Aquatic Acute 1 and Aquatic Chronic 1 classified, so after the German Ordinance on systems for handling water-polluting substances ( AwSV ) of the Water Hazard Class (WCG) attributable to third

Web links

Individual evidence

  1. ↑ a b c Entry on Chrysen. In: Römpp Online . Georg Thieme Verlag, accessed on December 26, 2017.
  2. ↑ a b c d e f g Susan Budavari (Ed.): The Merck Index . 12th edition. Merck & Co., Whitehouse Station, New Jersey, USA 1996, ISBN 0-911910-12-3 .
  3. ↑ Entry for CAS no. 218-01-9 in the GESTIS substance database of the IFA , accessed on February 1, 2016 (JavaScript required)
  4. ↑ Entry on Chrysene in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  5. ↑ Chrysene data sheet at Sigma-Aldrich , accessed on March 22, 2011 ( PDF ).
  6. ↑ Entry in the SVHC list of the European Chemicals Agency , accessed on January 19, 2018.
  7. ↑ N. Irving Sax; RJ Lewis (Ed.): Dangerous Properties of Industrial Materials . 7th edition. Van Nostrand Reinhold, New York, USA 1989, ISBN 978-0-442-28020-8 .
  8. ↑ International Chemical Safety Card (ICSC) for Chrysene from the National Institute for Occupational Safety and Health (NIOSH), accessed December 9, 2014.
  9. ↑ on this as for water pollution: Annex VI Part III, index no. 601-048-00-0, marking H350 or for water hazard H400 and H410
  10. ↑ through H410 and H350 more than 8 evaluation points according to para. 4.2 and 4.4 of Appendix 1 to AwSV