Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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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
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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