Decabromodiphenyl ethane
Chemical compound
From Wikipedia, the free encyclopedia
Decabromodiphenyl ethane is a chemical compound used as a brominated flame retardant. It was commercialised in the 1990s as an alternative for decabromodiphenyl ether,[1] following safety concern over that compound. The two molecules are chemically very similar, which gives them a similar application profile. Decabromodiphenyl ethane is now also coming under regulatory pressure.[2]
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| Names | |
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| IUPAC name
1,1'-ethane-1,2-diylbis(pentabromobenzene) | |
Other names
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| Identifiers | |
3D model (JSmol) |
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| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.076.669 |
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PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| C14H4Br10 | |
| Molar mass | 971.226 g·mol−1 |
| Appearance | White solid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Uses
Decabromodiphenylethane is used as a flame retardant in a wide variety of materials including high-impact polystyrene (HIPS), acrylonitrile butadiene styrene (ABS), polyolefins and elastomers. Antimony trioxide is often included as a synergist. Its use in epoxy resins (used for circuit boards), HIPS and ABS (casings), wire and cable means that it is common in electronic devices.[3] The amount manufactured in China between 2006 and 2016 was 230,000 tons, of which 39,000 tons were exported from China in electrical appliances.[4] Under the REACH Regulation, it is registered for the manufacture in and/or the import to the European Economic Area in the tonnage band between 10 000 and 100 000 tonnes per year.[2] In e-waste, an average concentration of 340±200 ppm was found in a study conducted in 2011, confirming the widespread occurrence of the chemical in electronic equipment.[5]