Description
diphenyl ether, octabromo derivative · CAS 32536-52-0 · C12H2Br8O. UNII 67XQ4G0A4Y. Melting Point: 200 °C (range, 167-257 °C); Density: 2.76; Vapor Pressure: 1.275X10-9 mm Hg at 25 °C.
Identification
| CAS Registry Number | 32536-52-0 |
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| PubChem CID | 6537506 |
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| Molecular formula | C12H2Br8O |
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| IUPAC name | 1,2,3,4-tetrabromo-5-(2,3,4,5-tetrabromophenoxy)benzene |
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| UNII (FDA) | 67XQ4G0A4Y |
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Computed Descriptors
| Molecular Weight | 801.4 |
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| XLogP3 | 9 |
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| Hydrogen Bond Donor Count | 0 |
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| Hydrogen Bond Acceptor Count | 1 |
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| Rotatable Bond Count | 2 |
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| Exact Mass | 801.34907 |
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| Monoisotopic Mass | 793.35727 |
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| Topological Polar Surface Area | 9.2 |
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| Heavy Atom Count | 21 |
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| Formal Charge | 0 |
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Physical & Chemical Properties
| Melting Point | 200 °C (range, 167-257 °C) |
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| Density | 2.76 |
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| Vapor Pressure | 1.275X10-9 mm Hg at 25 °C |
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| LogP | log Kow = 8.71 |
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Physical description & handling notes
- Off-white solid; [HSDB]
- Off-white powder (commercial)
- Faint
- All g/L at 25 °C: methanol, 2; methylene chloride, 110; toluene, 190; benzene, 200; styrene, 250; methyl ethyl ketone, 40; acetone, 20.
- In water, 0.005 mg/L (commercial product)
- When heated to decomposition it emits toxic vapors of /bromine/.
GHS Hazard Classification
| Reported hazard statements | H360, H372, H373, H413 |
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H360: May damage fertility or the unborn child [Danger Reproductive toxicity]
H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
Documented 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]
- The commercial octaBDE is used by the plastics industry as an additive flame retardant for manufactured products. It is used almost exclusively to flame retard acrylonitrile-butadiene-styrene (ABS) terpolymers used in computer casings and monitors ... Other minor uses ... include high impact polystyrene (HIPS), polybutylene terephthalate (PBT), and polyamide polymers.
- ComOcBDE /Commercial Octabromodiphenyl Ether/ is predominantly used in acrylonitrile butadiene styrene to flame retard business equipment housings.
- Polybrominated diphenyl ethers (PBDEs) are flame-retardant man-made chemicals found in plastics used in a variety of consumer products to make them difficult to burn. Octabromodiphenyl ethers are used in conjunction with antimony trioxide as a flame retardant in the housings of electrical and electronic equipment, mainly in the plastic acrylonitrile butadiene styrene, but also in high impact polystyrene, polybutylene terephthalate and polyamides. (L628, L701)
- Octabromodiphenyl ether is synthesized by treating diphenyl ether with 8 equivalents of Br2 in the presence of Al2Cl6/A12Br6, first at 35 °C and then at 120 °C. /Commercial OBDE is a mixture of approximately 11% PeBDE/HxBDE, 44% HpBDE, 31-35% OBDE, 10% NBDE, and 0.5% DeBDE. On the basis of the chemical structure, there are 12 possible isomers of OBDE./
- Benzene, 1,1'-oxybis-, octabromo is listed as a High Production Volume (HPV) chemical (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and/or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B; 51FR21438).
Synonyms
Octabromodiphenyl ether; Tardex 80; Bromkal 79-8DE; Octabromodiphenyl oxide; OCTABROMOBIPHENYL ETHER; DTXSID8024236; HSDB 7110; CD 79; DE 79; EINECS 251-087-9; 1,1'-Oxybisbenzene octabromo deriv.; FR 143; Bromkal 798DE; FR 1208; PLASAFETY EBR 8; PLASAFETY EB 8
Frequently Asked Questions
What are the CAS number and molecular formula of diphenyl ether, octabromo derivative?
CAS 32536-52-0; molecular formula C12H2Br8O; molecular weight — g/mol.
What other names is diphenyl ether, octabromo derivative known by?
Octabromodiphenyl ether, Tardex 80, Bromkal 79-8DE, Octabromodiphenyl oxide, OCTABROMOBIPHENYL ETHER, DTXSID8024236.
Is diphenyl ether, octabromo derivative classified as hazardous?
Hazard statements reported: H360, H372, H373, H413.
What are the key physical properties of diphenyl ether, octabromo derivative?
Melting Point: 200 °C (range, 167-257 °C); Density: 2.76; Vapor Pressure: 1.275X10-9 mm Hg at 25 °C; LogP: log Kow = 8.71.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.
