Registration Dossier
Registration Dossier
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EC number: 200-824-2 | CAS number: 74-95-3
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The Henry's Law constant for dibromomethane is 8.22X10-4 atm- cu m/mole(1). This Henry's Law constant indicates that dibromomethane is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 2 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 5 days(SRC). Dibromomethane's Henry's Law constant(1) indicates that volatilization from moist soil surfaces may occur(SRC).
[(1) Moore RM et al; Chemosphere 30: 1183-91 (1995) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Kudchadker AP et al; J Phys Chem Ref Data 8: 499-517 (1979)] **PEER REVIEWED**
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