Tetramethylene dimethacrylate

Distribution modelling

Administrative data

Endpoint:

distribution modelling

Type of information:

calculation (if not (Q)SAR)

Adequacy of study:

supporting study

Study period:

2013

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

Test material information

Constituent 1

Reference substance name:

Tetramethylene dimethacrylate

EC Number:

218-218-1

EC Name:

Tetramethylene dimethacrylate

Cas Number:

2082-81-7

Molecular formula:

C12H18O4

IUPAC Name:

butane-1,4-diyl bis(2-methylacrylate)

Specific details on test material used for the study:

- Name of test material (as cited in study report): 1,4-Butanediol dimethacrylate, 1,4-BDDMA
- Smiles notation: O=C(OCCCCOC(=O)C(=C)C)C(=C)C

Results and discussion

Percent distribution in media

Other distribution results:

potential environmental distribution of 1,4-BDDMA obtained from a generic level III fugacity model under two emission scenarios: 
release 100% to air:
Air: 26.5%
Water: 9.45%
Soil: 64%
Sediment: 0.0469%

release 100% to water:
Air: 0.00631%
Water: 99.5%
Soil: 0.0153%
Sediment: 0.494%

Any other information on results incl. tables

Level III Fugacity Model:

Emission to air:

	Mass Amount (percent)	Half-Life (hr)	Emissions (kg/hr)
Air	26.5	5.16	1000
Water	9.45	360	0
Soil	64	720	0
Sediment	0.0469	3.24e+03	0

 Persistence Time: 25.6 h

Emission to water:

	Mass Amount (percent)	Half-Life (hr)	Emissions (kg/hr)
Air	0.00631	5.16	0
Water	99.5	360	1000
Soil	0.0153	720	0
Sediment	0.494	3.24e+03	0

 Persistence Time: 342 h

 

	Release 100% to air	Release 100% to water
Air	26.5	0.00631
Water	9.45	99.5
Soil	64	0.0153
Sediment	0.0469	0.494

The potential environmental distribution of 1,4-BDDMA obtained from a generic level III fugacity model under two emission scenarios is shown in the table. 

The results show that if 1,4-BDDMA is released into air, it mainly distributes to soil. A smaller amount remains in the air or partitions to water. If the substance is released into water, it mainly remains in water. The substance does not have a significant presence in sediment.

Applicant's summary and conclusion

Conclusions:

The environmental distribution (Mackay level III distribution) of 1,4-BDDMA has been modelled using EPIWEB version 4.1.
The results show that if 1,4-BDDMA is released into air, it mainly distributes to soil. A smaller amount remains in the air or partitions to water. If the substance is released into water, it mainly remains in water. The substance does not significantly partition to sediment.