Registration Dossier
Registration Dossier
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EC number: 209-548-7 | CAS number: 585-07-9
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Scientifically acceptable method
Data source
Reference
- Reference Type:
- other: Mackay Level 1 calculation
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
- Model:
- calculation according to Mackay, Level I
- Media:
- air - biota - sediment(s) - soil - water
Test material
- Reference substance name:
- tert-butyl methacrylate
- EC Number:
- 209-548-7
- EC Name:
- tert-butyl methacrylate
- Cas Number:
- 585-07-9
- Molecular formula:
- C8H14O2
- IUPAC Name:
- tert-butyl 2-methylprop-2-enoate
- Test material form:
- other: liquid
Constituent 1
Study design
- Test substance input data:
- - Molar mass: 142.2 g/mol
- Data temperature: 25 °C
- Water solubility: 550 mg/L
- Vapour pressure: 770 Pa
- log Pow: 2.67
- Melting point: -48 °C
Results and discussion
Percent distribution in media
- Air (%):
- 98.5
- Water (%):
- 1.43
- Soil (%):
- 0.05
- Sediment (%):
- 0.05
Applicant's summary and conclusion
- Conclusions:
- According to the Mackay Level I model, the test item will mainly evaporate into the air (98.5 %)
- Executive summary:
To assess the distribution of the test item between the different environmental compartments the distribution was predicted with the Mackay Level 1 model. Phys-chem data as molar mass, temperature, water solubility, vapor pressure, log Pow and melting point were used as data input. For the different media the following distribution was predicted:
Compartement
Percent distribution predicted
Air
98.5
Water
1.43
Soil
0.05
Sediment
0.05
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