Where is it Commonly Found?
BTBPE is used as an additive in ABS resins, high-impact polystyrene (HIPS), thermoplastic, elastomers, unsaturated polyesters, adhesives and coatings, mainly in electronics including computers, televisions, and mobile cell phones (Danish EPA 2007; Thuresson 2004). With its high bromine content, BTBPE has been used for many thermoplastic and thermoset applications (Flick 1989). BTBPE has been advertised as a replacement for octa-BDE mixtures (Danish EPA 2007).
The acute toxicity of BTBPE is low via ingestion, inhalation, and dermal exposure (NILU 2008). No animal studies of carcinogenicity are available, but mutagenicity tests in Salmonella and yeast were negative. No information is available on the developmental and reproductive toxicity of the chemical. Studies on endocrine effects are inconclusive. The flame retardant 2,4,6-tribromophenol is a metabolite of BTBPE (Hamers et al., 2006; Suzuki et al., 2008), a thyroid hormone disruptor, and has been found in umbilical cord blood samples (Kawashiro et al., 2008). BTBPE is structurally similar to DBDPE and decaBDE. BTBPE has a very high bioaccumulation potential, and contamination of surface waters may lead to significant uptake in the food web (Wu, 2011). Beluga whales and ringed seals in the Arctic have been found to contain BTBPE (DeWit and Muir 2010). In the United States, BTBPE has been found in house dust and air samples, and in Lake Michigan sediment samples. BTBPE has also been found in birds' eggs of in the Great Lakes basin, the Norwegian Arctic and the Faroe Islands. (OEHHA 2008). BTBPE has also been found in small quantities in northern fulmar eggs from the Faroe Islands as well as in eggs and plasma from glaucous gulls in the Norwegian arctic; this indicates that BTBPE is capable of long-distance atmospheric transport (NILU 2008).
How is it Categorized?
1,2-bis(2,4,6-tribromophenoxy)ethane is a white powder that acts as a key component of many Flame Retardants.
What are its Synonyms?
BENZENE, 1,1'- 1,2-ETHANEDIYLBIS(OXY) BIS 2,4,6-TRIBROMO-
FIREMASTER FF 680