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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 205-500-4 | CAS number: 141-78-6
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 1996
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Model considered reliable and the main basis for fugacity modelling.
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Evaluating the environmental fate of a variety of types of chemicals using the EQC model.
- Author:
- Mackay, D. DiGuardo, A., Paterson, S. and Cowan, C.
- Year:
- 1 996
- Bibliographic source:
- Env. Toxicol. Chem. 15(9):1627-1637.
- Reference Type:
- secondary source
- Title:
- No information
- Author:
- See http://www.trentu.ca/academic/aminss/envmodel/EQCD.html
- Reference Type:
- publication
- Title:
- Multimedia Environmental models, the fugacity approach-second edition
- Author:
- Mackay D
- Year:
- 2 001
- Bibliographic source:
- Lewis, Boca Raton
Materials and methods
- Model:
- calculation according to Mackay, Level III
- Calculation programme:
- Mackay fugacity model III version 2.80.1
- Release year:
- 2 004
- Media:
- air - biota - sediment(s) - soil - water
Test material
- Reference substance name:
- Ethyl acetate
- EC Number:
- 205-500-4
- EC Name:
- Ethyl acetate
- Cas Number:
- 141-78-6
- Molecular formula:
- C4H8O2
- IUPAC Name:
- ethyl acetate
- Details on test material:
- not applicable.
Constituent 1
Study design
- Test substance input data:
- - Data temperature: 20 degC
- Physicochemical properties as in chapter 4
- MWt: 46.09 g/mol
- Reaction half-life estimates for
- Air: 203 hr (Graedel, 1978)
- Water: 182 hr (from biodegradation data)
- Soil: 364 hr (from biodegradation data x2 - usual default practice in EPISUITE)
- Sediment: 1638hrs (4.5x soil, default practice in EPISUITE) - Environmental properties:
- EU TGD defaults for compartment sizes.
Results and discussion
Percent distribution in media
- Air (%):
- 51.3
- Water (%):
- 35.3
- Soil (%):
- 13.3
- Sediment (%):
- 0.27
- Susp. sediment (%):
- 0
- Biota (%):
- 0
- Aerosol (%):
- 0
Any other information on results incl. tables
Results above are for first scenario shown below.
Results shown below are for the standard 1000kg per compartment, to demonstrate how sensitive each compartment is to direct emissions, plud emissions based on more a more realistic (albeit very conservative) profile of 3000kg/hr to air, 1000kg/hr to water and 300kg/hr to soil. This is based on the assumption that approximate emissions from all uses (primarily industrial) are ~10% to air (assuming compliance to VOC emission legislation), ~3% to water, ~1% to soil. The total emissions are considered representative of estimated total production in the EU.
Emission to air (kg/hr) |
3000 |
1000 |
0 |
0 |
Emission to water (kg/hr) |
1000 |
0 |
1000 |
0 |
Emission to soil (kg/hr) |
300 |
0 |
0 |
1000 |
Air concentration (ug/m3) |
3.24 |
0.88 |
0.45 |
0.55 |
Water concentration (ug/l) |
30.7 |
0.17 |
28.1 |
7.18 |
Sediment concentration (ug/kg) |
2.71 |
0.01 |
2.48 |
0.63 |
Soil concentration (ug/kg) |
1.69 |
0.04 |
0.02 |
5.14 |
Applicant's summary and conclusion
- Conclusions:
- Environmental background levels at regional and continental levels from emissions of ethyl acetate during use are not likely to be of concern.
- Executive summary:
Level III fugacity calculations based on realistic emissions quantities predict that environmental levels of ethyl acetate will be very low (<30ug/l in water, <1.7ug/kg in soil, <2.7ug/kg in sediment and <3.3ug/m3 in air.)
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
