Octabromodiphenyl ethers
Agent Name
Octabromodiphenyl ethers
CAS Number
32536-52-0
Formula
C12-H2-Br8-O
Major Category
Other Classes
Synonyms
1,1'-Oxybisbenzene octabromo deriv.; Bromkal 79-8DE; CD 79; DE 79; EB 8; FR 1208; FR 143; Octabromobiphenyl ether; Octabromodiphenyl ether; Octabromodiphenyl oxide; Tardex 80; Benzene, 1,1'-oxybis-, octabromo deriv.; Diphenyl ether, octabromo derivative; Phenyl ether, octabromo deriv. (8CI); Phenyl ether, octabromo deriv.; [ChemIDplus]
Category
Halogenated Polyaromatics
Description
Off-white solid; [HSDB]
Sources/Uses
Used as additive flame retardant; [HSDB] Used as flame retardant additive for polymers (mainly acrylonitrile-butadiene-styrene); Use is severely restricted in the EU; [eChemPortal: ESIS]
Comments
"Commercial octabromodiphenyl ether is a mixture of approximately 11% pentabromodiphenyl ether/hexabromodiphenyl ether, 44% heptabromodiphenyl ether, 31-35% octabromodiphenyl ether, 10% nonabromodiphenyl ether, and 0.5% decabromodiphenyl ether. On the basis of the chemical structure, there are 12 possible isomers of octabromodiphenyl ether." [HSDB] Dermal absorption is estimated at 4.5%; [European Commission] See "Decabromodiphenyl ether."
Biomedical References
Exposure Assessment
Lethal Concentration
LC (rat) > 60,000 mg/m3/1h
Adverse Effects
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
Reproductive Toxin
Yes
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.