2-methylimidazole

Distribution modelling

Administrative data

Endpoint:

distribution modelling

Type of information:

calculation (if not (Q)SAR)

Adequacy of study:

key study

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 calculation

Title:

Unnamed

Year:

2019

Report date:

2019

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

Test material information

Constituent 1

Reference substance name:

2-methylimidazole

EC Number:

211-765-7

EC Name:

2-methylimidazole

Cas Number:

693-98-1

Molecular formula:

C4H6N2

IUPAC Name:

2-methyl-1H-imidazole

Study design

Test substance input data:

- Molar mass: 82.11 g/mol
- Data temperature: 25 °C (BASF SE, rep. no.: 11L00195, 2012)
- Water solubility: 267000 mg/L (BASF SE, rep. no.: 11L00195, 2012)
- Vapour pressure: 0.0780 Pa (BASF SE, rep. no.: 11L00195, 2012)
- log Pow: 0.22 (BASF AG, OECD 107, rep. no.: 103652/01, 1989)
- Melting point: 144 °C (HSDB Database, FL 2007, p. 3-356, 2011)

Environmental properties:

see "Any other information on materials and methods incl. tables"

Results and discussion

Percent distribution in media

Water (%):

100

Any other information on results incl. tables

Over time, the substance will preferentially distribute into the compartment Water (100%).

The substance will be ionized at lower environmentally pH, so the distribution into water may be appropriate.

The data refer to the uncharged molecule (calculated pKa value: 7.86, see IUCLID Ch. 4.21)