Registration Dossier
Registration Dossier
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EC number: 246-874-9 | CAS number: 25340-17-4
Other distribution data
Administrative data
- Endpoint:
- other distribution data
- Adequacy of study:
- key study
- Study period:
- 1999
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Fugacity data were obtained using a standard fugacity Level III model program with appropriate endpoints.
Data source
Reference
- Reference Type:
- other: company data
- Title:
- Fugacity-based Environmental Equilibrium Partitioning Model
- Author:
- Trent University
- Year:
- 1 999
- Bibliographic source:
- Trent University. (1999). Fugacity-based Environmental Equilibrium Partitioning Model. Version 2.2. Environmental Modeling Centre, Trent University, Peterborough, Ontario. (Available at http://ww.trentu.ca/envmodel.)||US EPA EPIWIN Suite. (Estimates
Materials and methods
- Principles of method if other than guideline:
- Method: other: Calculated EQC Levels I, II, and III
- GLP compliance:
- not specified
- Type of study:
- other: F20-04:Fugacity Models I, II and III
- Media:
- other: air-water-soil-sediment
Test material
- Reference substance name:
- Diethylbenzene
- EC Number:
- 246-874-9
- EC Name:
- Diethylbenzene
- Cas Number:
- 25340-17-4
- Molecular formula:
- C10H14
- IUPAC Name:
- diethylbenzene
- Details on test material:
- 1,3-Diethylbenzene (CAS 141-93-5)
Remarks: SMILES notation: c(cccc1CC)(c1)CC
Constituent 1
Results and discussion
Any other information on results incl. tables
Air, soil, water and sediment concentrations were estimated.
Level I Level II Level III(default*)
(air/water/soil)
Air 95.4% 95.4% 0.54%
Water 0.18% 0.18% 31.2%
Soil 4.3% 4.3% 61.7%
Sediment 0.10% 0.10% 6.6%
Level III (default*) Level III (air only) (water only)
Air 99.6% 3.0% Water 0.02% 80.0% Soil 0.37% 0.01%
Sediment 0.00% 16.9%
Remarks: Since default assumptions for release estimates were used, resulting environmental concentrations are not provided.
Air % (Fugacity Model Level I): 95.4
Water % (Fugacity Model Level I): 0.18
Soil % (Fugacity Model Level I): 4.3
Applicant's summary and conclusion
- Conclusions:
- These results indicated that 1,3 diethylbenzene will partition primarily to air under equilibrium conditions (Level I and II models), but to soil and water under the assumed pattern of chemical release (equal loading of water, soil and air) in the Level III model. These results reflect the Level III model's loading pattern plus the estimated moderately long half-life in water and soil and short half-life in air.
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