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- Title
Vapor pressure of three brominated flame retardants determined by using the Knudsen effusion method.
- Authors
Fu, Jinxia; Suuberg, Eric M.
- Abstract
Brominated flame retardants (BFRs) have been used in a variety of consumer products in the past four decades. The vapor pressures for three widely used BFRs, that is, tetrabromobisphenol A (TBBPA), hexabromocyclododecane (HBCD), and octabromodiphenyl ethers (octaBDEs) mixtures, were determined using the Knudsen effusion method and compared with those of decabromodiphenyl ether (BDE209). The values measured extrapolated to 298.15 K are 8.47 × 10−9, 7.47 × 10−10, and 2.33 × 10−9 Pa, respectively. The enthalpies of sublimation for these BFRs were estimated using the Clausius-Clapeyron equation and are 143.6 ± 0.4, 153.7 ± 3.1, and 150.8 ± 3.2 kJ/mole, respectively. In addition, the enthalpies of fusion and melting temperatures for these BFRs were also measured in the present study. Environ. Toxicol. Chem. 2012;31:574-578. © 2011 SETAC
- Subjects
VAPOR pressure; FIREPROOFING agents; FREE molecular flow; ENTHALPY; EXUDATES &; transudates
- Publication
Environmental Toxicology & Chemistry, 2012, Vol 31, Issue 3, p574
- ISSN
0730-7268
- Publication type
Article
- DOI
10.1002/etc.1736