Pentabromotoluene

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Structural formula
Structural formula of pentabromotoluene
General
Surname Pentabromotoluene
other names
  • 1,2,3,4,5-pentabromo-6-methylbenzene
  • 1,2,3,4,5-pentabromotoluene
  • Pentabromotoluene
  • PBT
Molecular formula C 7 H 3 Br 5
Brief description

White dust

External identifiers / databases
CAS number
  • 87-83-2
  • 26101-97-3 (obsolete)
EC number 201-774-4
ECHA InfoCard 100.001.614
PubChem 6906
Wikidata Q20025015
properties
Molar mass 486.62 g mol −1
Physical state

firmly

Melting point

285-286 ° C

safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 315-319-335
P: 305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Pentabromotoluene (also 1,2,3,4,5-pentabromo-6-methylbenzene ) is an organic chemical compound that is used as a flame retardant .

Manufacturing

Pentabromotoluene is a derivative of toluene and can be synthesized from it.

properties

Due to the substitution with five bromine atoms on the aromatic ring, pentabromotoluene has a significantly lower volatility than toluene.

use

In electronic waste an average concentration of 4 was in a 2011 study conducted  ppm found what the presence of PBT confirmed in electronic devices.

See also

literature

  • Ferdinand Schulz: The quantitative determination of benzene and toluene in gases. In: Collection of Czechoslovak Chemical Communications. 1, 1929, pp. 228-233, doi : 10.1135 / cccc19290228 .
  • I. Chu, DC Villeneuve, B. McDonald, VE Secours, VE Valli: Pentachlorotoluene and pentabromotoluene: results of a subacute and a subchronic toxicity study in the rat. In: Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes. 22 (3), 1987, pp. 303-317, doi : 10.1080 / 03601238709372559 , PMID 3655187 .

Individual evidence

  1. ↑ Åke Bergman , Andreas Rydén, Robin J. Law, Jacob de Boer, Adrian Covaci, Mehran Alaee, Linda Birnbaum, Myrto Petreas, Martin Rose, Shinichi Sakai, Nele Van den Eede, Ike van der Veen: A novel abbreviation standard for organobromine , organochlorine and organophosphorus flame retardants and some characteristics of the chemicals . In: Environment International . tape 49 , 2012, p. 57–82 , doi : 10.1016 / j.envint.2012.08.003 , PMC 3483428 (free full text).
  2. ↑ a b c d Entry on pentabromotoluene in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
  3. ^ Entry on pentabromotoluene in the ChemSpider database of the Royal Society of Chemistry , accessed on June 2, 2015.
  4. ^ RHC Nevile, A. Winther: The six tribromotoluenes, the three tetrabromotoluenes and the pentabromotoluene. In: Reports of the German Chemical Society. 13, 1880, pp. 974-976, doi : 10.1002 / cber.188001301273 .
  5. ^ Ruedi Taverna, Rolf Gloor, Urs Maier, Markus Zennegg, Renato Figi, Edy Birchler: Material flows in Swiss electronic waste . Metals, non-metals, flame retardants and polychlorinated biphenyls in small electrical and electronic devices . Federal Office for the Environment , Bern 2017. Environmental status No. 1717: 164 p.