1,2-bis (2,4,6-tribromophenoxy) ethane

Structural formula
General
Surname	1,2-bis (2,4,6-tribromophenoxy) ethane
other names	1,1 ′ - [1,2-ethanediylbis (oxy)] bis (2,4,6-tribromobenzene) 1,1 ′ - [1,2-ethanediylbis (oxy)] bis (2,4,6-tribromobenzene) BTBPE
Molecular formula	C 14 H 8 Br 6 O 2
External identifiers / databases
CAS number 37853-59-1 EC number 253-692-3 ECHA InfoCard 100,048,794 PubChem 37840 ChemSpider 34697 Wikidata Q16830216
properties
Molar mass	687.64 g mol −1
Physical state	firmly
Melting point	224 ° C
Vapor pressure	2.26 · 10 −11 Pa (25 ° C)
solubility	very slightly soluble in water (0.2 mg l −1 at 25 ° C)
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

1,2-bis (2,4,6-tribromophenoxy) ethane ( BTBPE ) is a chemical compound that is used as a flame retardant .

use

BTBPE has been manufactured since the mid-1970s and used as an additive flame retardant in polystyrene , thermoplastics and synthetic resins . Because of the amount of use, BTBPE is a High Production Volume Chemical in the United States . In electronic waste an average concentration of 150 was used in a 2011 study conducted  ppm found, confirming the widespread occurrence of BTBPE in electronic devices.

Environmental relevance

BTBPE was found in biota , air, sediments, sewage sludge , house dust and in food. A biomagnification potential was found in fish .

Individual evidence

1. ↑ ^{a b} US EPA : Initial Risk-Based Prioritization of High Production Volume (HPV) Chemicals: Benzene, 1,1 '- [1,2-ethanediylbis (oxy)] to [2,4,6-tribromo- (CASRN 37853 -59-1) ( memento from September 24, 2015 in the Internet Archive ), 2009 ( limited preview in Google Book Search).
2. ↑ Hidetoshi Kuramochi, Hidetaka Takigami, Martin Scheringer , Shin-ichi Sakai: Measurement of Vapor Pressures of Selected PBDEs, Hexabromobenzene, and 1,2-Bis (2,4,6-tribromophenoxy) ethane at Elevated Temperatures , J. Chem. Eng . Data , 2014 , 59  (1), pp. 8-15, doi: 10.1021 / je400520e .
3. ↑ Entry on 1,2-bis (2,4,6-tribromophenoxy) ethane in the ChemIDplus database of the United States National Library of Medicine (NLM), accessed on December 4, 2018.
4. ↑ There is not yet a harmonized classification for this substance . A labeling of 1,1 ′ - [ethane-1,2-diylbisoxy] to [2,4,6-tribromobenzene] in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on 1 November 2014.
5. ↑ 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).
6. ↑ ^{a b} EFSA Panel on Contaminants in the Food Chain (CONTAM): Scientific Opinion on Emerging and Novel Brominated Flame Retardants (BFRs) in food . EFSA Journal 2012, 10 (10): 2908; doi : 10.2903 / j.efsa.2012.2908 .
7. ^ 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.
8. ↑ GT Tomy, VP Palace, K. Pleskach, N. Ismail, T. Oswald, R. Danell, K. Wautier, B. Evans: Dietary exposure of juvenile rainbow trout (Oncorhynchus mykiss) to 1,2-bis (2, 4,6-tribromophenoxy) ethane: bioaccumulation parameters, biochemical effects, and metabolism. In: Environmental Science & Technology . Volume 41, Number 14, 2007, pp. 4913-4918, PMID 17711202 .