Registration Dossier
Registration Dossier
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EC number: 201-793-8 | CAS number: 88-04-0
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 1,400(SRC), determined from a log Kow of 3.27(2) and a regression-derived equation(3), indicates that chloroxylenol is expected to have low mobility in soil(SRC). Volatilization of chloroxylenol from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 5.1X10-7 atm-cu m/mol(SRC), derived using a fragment constant estimation method(4). Chloroxylenol is not expected to volatilize from dry soil surfaces(SRC) based upon its vapor pressure(4). Degradation of chloroxylenol appears to be slower than other phenol derivatives(5,6). Studies in sewage showed 95-80% of the original compound remaining after 2 days and 60-70% remaining after 7 days(5). This is consistent with other studies that showed less than 40% degradation in activated sludge over 7 days(6).
Key value for chemical safety assessment
Additional information
[(1) Swann RL et al; Res Rev 85: 17-28 (1983) (2) Sangster J; LOGKOW Database. A databank of evaluated octanol-water partition coefficients (Log P). Available from database query at http://Logkow.cisti.nrc.ca/Logkow/search.html as of Feb 1, 2006. (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 4-9 (1990) (4) Meylan WM, Howard PH; Environ Toxicol Chem 10: 1283-93 (1991) (5) Pauli O, Franke G; Proc Int Biodeteriation Symp 2nd pp. 52-60 (1971) (6) Paulus W, Genth H; Biodeteriation 5: 701-712 (1983)
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