Registration Dossier
Registration Dossier
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EC number: 202-615-1 | CAS number: 97-88-1
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Accepted calculation method.
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 015
Materials and methods
- Model:
- calculation according to Mackay, Level III
- Calculation programme:
- A Mackay level III distribution was calculated using the EPI Suite ver. 4.10 (US-EPA, 2008)
- Release year:
- 2 008
- Media:
- air - biota - sediment(s) - soil - water
Test material
- Reference substance name:
- Butyl methacrylate
- EC Number:
- 202-615-1
- EC Name:
- Butyl methacrylate
- Cas Number:
- 97-88-1
- Molecular formula:
- C8H14O2
- IUPAC Name:
- butyl methacrylate
Constituent 1
Study design
- Test substance input data:
- Distributions were calculated with the following factors:
butyl methacrylate
molecular weight: 142.20
Physical Property Inputs:
Log Kow (octanol-water): 3.00
Boiling Point (deg C) : 163.00
Melting Point (deg C) : -50.00
Vapor Pressure (mm Hg) : 1.59 (=2.12 hPa)
Water Solubility (mg/L): 360
EPIWIN inputs:
Henry's LC : 0.000496 atm-m3/mole (Henry database)
Soil Koc : 55.3 (KOCWIN MCI method)
Results and discussion
Percent distribution in media
- Other distribution results:
- The potential environmental distribution of butyl methacrylate obtained from generic level III fugacity model under two emission scenarios is shown in the table.
The results show that if butyl methacrylate is released mainly into air, it mainly remains in the air. And if it is released into water, it also mainly remains in the water. n-BMA does not have a significant presence in soil or sediment.
Compartment Amount %
Release 100% to air Release 100% to water
Air 96.6 2.05
Water 2.68 97.6
Soil 0.71 0.02
Sediment 0.01 0.36
Any other information on results incl. tables
Level III Fugacity Model (Full-Output):
=======================================
Chem Name : 2-Propenoic acid, 2-methyl-, butyl ester
Molecular Wt: 142.2
Henry's LC : 0.000496 atm-m3/mole (Henry database)
Vapor Press : 1.59 mm Hg (user-entered)
Log Kow : 3 (user-entered)
Soil Koc : 55.3 (KOCWIN MCI method)
| Mass Amount (percent) | Half-Life(hr) | Emissions(kg/hr) | |
| Air | 96.6 | 9.97 | 1000 |
| Water | 2.68 | 208 | 0 |
| Soil | 0.714 | 416 | 0 |
| Sediment | 0.00983 | 1.87e+003 | 0 |
| Fugacity(atm) | Reaction(kg/hr) | Advection(kg/hr) | Reaction(percent) | Advection(percent) | |
| Air | 2.16e-011 | 873 | 126 | 87.3 | 12.6 |
| Water | 6.07e-012 | 1.16 | 0 .348 | 0.116 | 0.0348 |
| Soil | 1.1e-011 | 0.154 | 0 | 0.0154 | 0 |
| Sediment | 4.79e-012 | 0.000473 | 0.0000256 | 0.0000473 | 2.56e-06 |
Persistence Time: 13 hr
Reaction Time: 14.9 hr
Advection Time: 103 hr
Percent Reacted: 87.4
Percent Advected: 12.6
Half-Lives (hr), (based upon Biowin (Ultimate) and Aopwin):
Air: 9.969
Water: 208.1
Soil: 416.2
Sediment: 1873
Biowin estimate: 3.323 (days-weeks )
Advection Times (hr):
Air: 100
Water: 1000
Sediment: 5e+004
Level III Fugacity Model (Full-Output):
=======================================
Chem Name : 2-Propenoic acid, 2-methyl-, butyl ester
Molecular Wt: 142.2
Henry's LC : 0.000496 atm-m3/mole (Henry database)
Vapor Press : 1.59 mm Hg (user-entered)
Log Kow : 3 (user-entered)
Soil Koc : 55.3 (KOCWIN MCI method)
| Mass Amount (percent) | Half-Life(hr) | Emissions(kg/hr) | |
| Air | 2.05 | 9.97 | 0 |
| Water | 97.6 | 208 | 1000 |
| Soil | 0.0152 | 416 | 0 |
| Sediment | 0.358 | 1.87e+003 | 0 |
| Fugacity(atm) | Reaction(kg/hr) | Advection(kg/hr) | Reaction(percent) | Advection(percent) | |
| Air | 6.01e-012 | 243 | 35 | 24.3 | 3.5 |
| Water | 2.9e-09 | 555 | 167 | 55.5 | 16.7 |
| Soil | 3.07e-012 | 0.0431 | 0 | 0.00431 | 0 |
| Sediment | 2.29e-09 | 0.226 | 0.0122 | 0.0226 | 0.00122 |
Persistence Time: 171 hr
Reaction Time: 214 hr
Advection Time: 847 hr
Percent Reacted: 79.8
Percent Advected: 20.2
Half-Lives (hr), (based upon Biowin (Ultimate) and Aopwin):
Air: 9.969
Water: 208.1
Soil: 416.2
Sediment: 1873
Biowin estimate: 3.323 (days-weeks )
Advection Times (hr):
Air: 100
Water: 1000
Sediment: 5e+004
Applicant's summary and conclusion
- Conclusions:
- Using a valid modeling method, if butyl methacrylate is released mainly into air, it mainly remains in the air; if it is released into water, it mainly remains in the water. n-BMA does not have a significant presence in soil or sediment.
- Executive summary:
Using a valid modeling method, if butyl methacrylate is released mainly into air, it mainly remains in the air; if it is released into water, it mainly remains in the water. n-BMA does not have a significant presence in soil or sediment.
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