Registration Dossier
Registration Dossier
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EC number: 204-817-5 | CAS number: 126-98-7
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- weight of evidence
- Study period:
- no data
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Peer reviewed handbook and literature data
Data source
Referenceopen allclose all
- Reference Type:
- other: Simulation software
- Title:
- EXAMS II Computer Simulation
- Author:
- USEPA
- Year:
- 1 987
- Bibliographic source:
- USEPA, Washington DC, USA
- Reference Type:
- publication
- Title:
- Izvestiya Vysshikh Uchebnykh Zavednii
- Author:
- Linetskii VA & Serebryakov BR
- Year:
- 1 965
- Bibliographic source:
- Neft I Gaz 8: 62
- Reference Type:
- publication
- Title:
- Handbook of Chemical Property Estimation Methods: Environmental Behavior of Organic Compounds
- Author:
- Lyman WK et al.
- Year:
- 1 982
- Bibliographic source:
- McGraw-Hill, New York, USA
Materials and methods
- Model:
- other: no data
- Calculation programme:
- No data
- Media:
- other: no data
Test material
- Reference substance name:
- Methacrylonitrile
- EC Number:
- 204-817-5
- EC Name:
- Methacrylonitrile
- Cas Number:
- 126-98-7
- Molecular formula:
- C4H5N
- IUPAC Name:
- 2-methylprop-2-enenitrile
- Details on test material:
- No data
Constituent 1
Study design
- Test substance input data:
- Calculations were based on test substance water solubility of 25400 mg/L and a vapour pressure of 71.2 mm Hg at 25 degrees Centigrade
- Environmental properties:
- No data
Results and discussion
Percent distribution in media
- Other distribution results:
- Henry's Law constant for methacrylonitrile was estimated to be 2.47 x 10-4 atm-cu m/mole. Based on this Henry's Law constant, the volatization half-life from model river 1 m deep flowing at 1 m/s with a wind velocity of 3 m/sec was estimated to be about 5.3 h. For a model lake 1 m deep flowing at 0.05 m/s with a wind velocity of 0.5 m/s the volatilisation half-life was estimated as 4 days.
Applicant's summary and conclusion
- Conclusions:
- Volatilization from water surfaces is expected to be an important fate process
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