Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
distribution modelling
Type of information:
experimental study
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: model calculation report
Title:
Unnamed
Year:
2008

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
Mackay LEVEL I v3.00, Trent University 2004
Release year:
2 004
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
2-ethylhexanoic acid
EC Number:
205-743-6
EC Name:
2-ethylhexanoic acid
Cas Number:
149-57-5
Molecular formula:
C8H16O2
IUPAC Name:
2-ethylhexanoic acid

Study design

Test substance input data:
- molecular mass: 144 g/mol
- data temperature: 20 °C
- log Kow: 2.7
- water-solubility: 2000 g/m3
- Henry´s law constant: 0.0288 Pa*m3/mol
- vapour pressure: 0.4 Pa
- melting point: -59
Environmental properties:
Model parameters:

Volume Density org. C fish lipid
[m3] [kg/m3] [g/g] [g/g]
air 6.00E+09 1.185 - -
water 7.00E+06 1000 - -
soil 45000 1500 0.02 -
sediment 21000 1300 0.05 -
susp. sed. 35 1500 0.167 -
fish 7 1000 - 0.05
aerosol 0.12 1500 - -

Results and discussion

Percent distribution in media

Air (%):
0.93
Water (%):
91.7
Soil (%):
3.64
Sediment (%):
3.68
Susp. sediment (%):
0.02
Biota (%):
0
Aerosol (%):
0

Any other information on results incl. tables

Over time, the substance will preferentially distribute into water.

Applicant's summary and conclusion