DECABROMOBIPHENYL ETHANE |
Synonyms:
1,1'-(Ethane-1,2-diyl)bis(pentabromobenzene);
Decabromobiphenyl ethane; 2,2',3,3',4,4',5,5',6,6'-Decabromobiphenyl ethane;
Decabromodiphenyl ethane; 1,2-Bis(pentabromophenyl) ethane;
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PRODUCT
IDENTIFICATION
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CAS
RN
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84852-53-9
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EINECS
RN |
284-366-9 |
FORMULA |
C14H4Br10 |
MOLE
WEIGHT
|
971.22 |
SMILES
|
c1(c(c(Br)c(c(c1Br)Br)CCc1c(c(Br)c(c(c1Br)Br)Br)Br)Br)Br |
H.S. CODE |
2909.30.0700 |
CLASSIFICATION
|
Flame retardant, |
EXTRA
NOTES
|
Overall Carcinogenic Evaluation: Group 2B |
PHYSICAL
AND CHEMICAL PROPERTIES
|
PHYSICAL
STATE |
white powder |
MELTING
POINT |
> 345 C |
BOILING
POINT |
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DENSITY
|
3.2 |
SOLUBILITY
IN WATER |
Insoluble |
SOLVENT
SOLUBILITY |
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pH |
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log Pow
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HENRY LAW
CONSTANT |
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OH RATE
CONSTANT |
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VAPOR
PRESSURE |
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REFRACTIVE
INDEX
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FLASH
POINT |
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EXTERNAL
LINKS & GENERAL DESCRIPTION
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Wikipedia
Linking (Flame retardant)
Google
Scholar Search
http://pubs.acs.org/ The brominated flame retardant
decabromodiphenyl ethane, DeBDethane, is marketed as an alternative to
decabromodiphenyl ether, BDE209. There are currently no data available about the
presence of DeBDethane in the environment. In this study, DeBDethane was
positively identified by high-resolution mass spectrometry and quantified by
low-resolution mass spectrometry with electron capture negative ionization in
sewage sludge, sediment, and indoor air. It was found in 25 of the 50 Swedish
sewage treatment plants investigated, with estimated levels up to about 100 ng/g
dry weight. The concentration of DeBDethane in sediment from Western Scheldt in
The Netherlands was 24 ng/g dry weight, and in an air sample from a Swedish
electronics dismantling facility it was 0.6 ng/m3. DeBDethane was
also found together with nonabromodiphenyl ethanes in water piping insulation.
All samples contained BDE209 in higher concentrations as compared to DeBDethane
(DeBDethane/BDE209 ratios ranging from 0.02 to 0.7), probably reflecting the
higher and longer usage of BDE209. There is an ongoing risk assessment within
the European Union regarding BDE209. Since DeBDethane has similar applications,
it is important to investigate its environmental behavior before using it to
replace BDE209.
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SALES
SPECIFICATION
|
APPEARANCE |
white powder
|
BROMINE
CONTENT |
81.0% min |
WHITENESS
|
88%
min
|
MELTING
POINT
|
345
C
|
MOISTURE
|
0.01%
max
|
FREE
BROMINE
|
20ppm
max
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PARTICLE
SIZE |
3μm max |
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