Investigation of the reaction of hexabromocyclododecane with polysulfide and bisulfide in methanol/water solutions
Lo, KW; Saha-Roy, SC; Jans, U
HERO ID
1039030
Reference Type
Journal Article
Year
2012
Language
English
PMID
| HERO ID | 1039030 |
|---|---|
| In Press | No |
| Year | 2012 |
| Title | Investigation of the reaction of hexabromocyclododecane with polysulfide and bisulfide in methanol/water solutions |
| Authors | Lo, KW; Saha-Roy, SC; Jans, U |
| Journal | Chemosphere |
| Volume | 87 |
| Issue | 2 |
| Page Numbers | 158-162 |
| Abstract | Reactions of hexabromocyclododecane (HBCD), a widely used brominated flame retardant, with reduced sulfur species (e.g., polysulfide and bisulfide) were investigated in well-defined solutions under anoxic conditions. It is likely that reactions of HBCD with reduced sulfur species such as polysulfides and bisulfide present in anoxic subregions of coastal water bodies and sediments could have a significant impact on the fate of HBCD. The second-order reaction rate constant of HBCD with polysulfides in 80% methanol/20% water at 40°C is 2.2 (±0.3)×10(-2) M(-1) s(-1). The second-order reaction rate constant of HBCD with bisulfide is 8.9 (±2.8)×10(-4) M(-1) s(-1) under the same conditions. The formation of two products was observed with either of the two reduced sulfur species. The experiments also indicate that the γ-isomer of HBCD is reacting significantly faster with reduced sulfur species than the α-isomer. |
| Doi | 10.1016/j.chemosphere.2011.12.008 |
| Pmid | 22209301 |
| Wosid | WOS:000301632000009 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science 000301632000009 |
| Is Public | Yes |
| Language Text | English |
| Keyword | Hexabromocyclododecane; Flame Retardant; Bisulfide; Polysulfide; Debromination |
| Is Qa | No |