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Vapor pressures of six brominated diphenyl ether congeners
Author(s) -
Tittlemier Sheryl A.,
Tomy Gregg T.
Publication year - 2001
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620200116
Subject(s) - bromine , diphenyl ether , polybrominated diphenyl ethers , ether , chemistry , environmental chemistry , vapor pressure , medicinal chemistry , chromatography , organic chemistry , pollutant
Subcooled liquid vapor pressures ( P o Lof six polybrominateddiphenyl ether (PBDE) congeners containing three to seven bromine atoms were determined using the gas chromatograph retention time technique. Values ranged from 2.3 × 10 −7 to 1.45 × 10 −4 Pa at 25°C. An increase in the number of bromine atoms tended to decrease P o Laccording to the correlation log P o L= −0.692 (bromine number) −1.76 ( R 2 = 0.953, p < 0.001). In addition, the first such data for individual PBDE congeners demonstrates that P o Lwould vary four orders of magnitude over environmentally relevant temperatures.