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Environmental fate & pathways

Distribution modelling

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Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Justification for type of information:
1. SOFTWARE
see Mackay, D. 2001. "Multimedia Environmental Models: The Fugacity Approach - Second Edition", Lewis Publishers, Boca Raton, pp. 1-261.

2. MODEL (incl. version number)
Mackay Level I v3.00

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
- molar mass
- temperature
- water solubility
- vapor pressure
- melting point
- log kow

4. SCIENTIFIC VALIDITY OF THE MODEL
For details see Mackay, D. (2001); Mackay et al. (1996)

5. APPLICABILITY DOMAIN
For details see Mackay, D. (2001); Mackay et al. (1996)

6. ADEQUACY OF THE RESULT
A Level I calculation is not required under REACh but gives a general impression of the likely media into which a chemical will tend to partition and an indication of relative concentrations in each medium.

Data source

Reference
Reference Type:
other: Mackay
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
Level I Version 3.0
Release year:
2 004
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
480-410-8
EC Name:
-
Cas Number:
13482-23-0
Molecular formula:
C7 H12 O2
IUPAC Name:
Cyclohexanone, 4-methoxy-

Study design

Test substance input data:
- Molar mass: 128.17 g/mol
- Data temperature: 25 °C (Siemens Axiva GmbH, rep. no.: 001-3.0.60-01)
- Water solubility: 5E + 05 mg/L (20 °C, Bayer Cropscience GmbH, rep. no.: 001-3.060-01, 2006)
- Vapour pressure: 3.33 Pa (25 °C, Siemens Axiva GmbH, rep. no.: 001-3.0.60-01)
- log Pow: 0.29 (25 °C, calculated with KOWWIN v1.68, EPI Suite v4.11, 2018))
- Melting point: -4.17 °C (25 °C, calculated with EPI Suite v4.11, 2018)
Environmental properties:
see "Any other information on materials and methods incl. tables"

Results and discussion

Percent distribution in media

Air (%):
0.03
Water (%):
99.9
Soil (%):
0.01
Sediment (%):
0.01

Any other information on results incl. tables

Over time, the substance will preferentially distribute into the compartment water (99.9%).

The data refer to the uncharged molecule.

Applicant's summary and conclusion