Registration Dossier

Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable calculation method

Data source

Reference
Reference Type:
other: Mackay calculation
Title:
Unnamed
Year:
2012
Report Date:
2012

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

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
other: not applicable
Details on test material:
- Name of test material (as cited in study report): Methyldimethylamine
- Analytical purity: pure substance

Study design

Test substance input data:
The following physicochemical properties of the substance were used to calculate the distribution:

- Molar mass: 119.16 g/mol
- Data temperature: 20 °C
- Water solubility: 1000000 g/m³ (measured; Mullins, 1978. SRC PhysProp Database)
- Vapour pressure: 0.314 Pa (measured; @ 20 °C, BASF AG, 1985. Report no. BRU 85.85)
- log Pow: -1.16 (measured; 23 °C, pH 10.5; BASF SE, 2011, report no. 10L00407)
- Melting point: -21.3 °C (measured; BASF AG, 1985. Report no. BRU 85.85)
- Henry´s law constant: 3.74E-05 Pa*m³/mol (calculated by Mackay Level I program)
Environmental properties:
Volume Density Org. C Fish lipid
(m³) (kg/m³) (g/g) (g/g)
air 6.0E+09 1.21*
water 7.0E+06 1000
soil 45000 1500 0.02
sediment 21000 1300 0.05
susp. part. 35.0 1500 0.167
fish 7.0 1000 0.05
aerosole 0.120 1500

* 1.21 kg/m³ at data temperature of 20 °C; 1.19 at data temperature 25 °C

Results and discussion

Percent distribution in media

Air (%):
0.001
Water (%):
100
Soil (%):
0.001
Sediment (%):
0.001
Susp. sediment (%):
0
Biota (%):
0
Aerosol (%):
0

Any other information on results incl. tables

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

Applicant's summary and conclusion