Organophosphate esters (OPEs) are commonly used as additives in foams, paints, and
other industrial applications where plasticizers or flame-retardants are required. These
mostly water soluble compounds have been detected in wastewaters, surface waters, and
drinking waters across Europe and North America. The aqueous OH-oxidation rate, k<sub>OH</sub>,
was empirically determined for four organophosphate esters according to a previously
developed UV-H<sub>2</sub>O<sub>2</sub>-competition-kinetics method, utilizing a bench-scale UV apparatus
containing low-pressure-Hg lamps, and nitrobenzene as the reference compound. The
efficiency of dehalogenation, with respect to oxidation of a chlorinated OPE in lab-grade
water, was assessed for OH formed from UV-H<sub>2</sub>O<sub>2</sub> and UV-HOCl. The significance of
the observed rates of OPE oxidation and subsequent dehalogenation are discussed. Includes 12 references, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 240 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 11 |
| Published : | 11/01/2007 |
