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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Study period:
2020
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2020

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
A Mackay level III distribution was calculated using the EPI Suite v4.1 (US-EPA)
Release year:
2 010

Test material

Constituent 1
Chemical structure
Reference substance name:
Benzyl methacrylate
EC Number:
219-674-4
EC Name:
Benzyl methacrylate
Cas Number:
2495-37-6
Molecular formula:
C11H12O2
IUPAC Name:
benzyl methacrylate
Test material form:
liquid
Specific details on test material used for the study:
- Name of test material (as cited in study report): Benzyl methacrylate, BNMA CAS No. 2495-37-6
- Smiles notation: C=C(C)C(=O)OCc1ccccc1

Results and discussion

Percent distribution in media

Other distribution results:
potential environmental distribution of BNMA obtained from a generic level III fugacity model under two emission scenarios: 
release 100% to air:
Air: 79.8%          
Water: 11.6%
Soil: 8.43%
Sediment: 0.167%

release 100% to water:
Air: 0.236%
Water: 98.3%
Soil: 0.025%
Sediment: 1.42%
 

Any other information on results incl. tables

Level III Fugacity Model:

Emission to air:

 

Mass Amount

(percent)       

Half-Life

(hr)      

Emissions

(kg/hr)

Air      

79.8

7.32 

1000

Water    

11.6

360

0

Soil     

8.43

720

0

Sediment 

0.167

3.24e+03

0

 Persistence Time: 11.9 hr

 

 

Emission to water:

 

Mass Amount

(percent)       

Half-Life

(hr)      

Emissions

(kg/hr)

Air      

0.236          

7.32 

0

Water    

98.3

360

1000

Soil     

0.025

720

0

Sediment 

1.42

3.24e+03

0

Persistence Time:320 hr

 

 

Release 100% to air

Release 100% to water

Air      

79.8

0.236          

Water    

11.6

98.3

Soil     

8.43

0.025

Sediment 

0.167

1.42

 

The potential environmental distribution of BNMA obtained from a generic level III fugacity model under two emission scenarios is shown in the table. 

The results show that if BNMA is released into air, it mainly remains in the air. A smaller amount partitions to water and soil. If the substance is released into water, it mainly remains in water. The substance does not significantly partition to sediment.

Applicant's summary and conclusion

Conclusions:
The environmental distribution (Mackay level III distribution) of BNMA has been modelled using EPIWEB version 4.1.
The results show that if BNMA is released into air, it mainly remains in the air. A smaller amount partitions to water and soil. If the substance is released into water, it mainly remains in water. The substance does not significantly partition to sediment.
Executive summary:

The environmental distribution (Mackay level III distribution) of BNMA has been modelled using EPIWEB version 4.1.

The results show that if BNMA is released into air, it mainly remains in the air. A smaller amount partitions to water and soil. If the substance is released into water, it mainly remains in water. The substance does not significantly partition to sediment.