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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Environmental fate & pathways

Distribution modelling

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Administrative data

Endpoint:
distribution modelling
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
1. SOFTWARE
not specified

2. MODEL (incl. version number)
Level 1 Fugacity model

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
CCN(CC)CC

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
See attached QMRF.

5. APPLICABILITY DOMAIN
See attached QPRF.

6. ADEQUACY OF THE RESULT
- The model is scientifically valid (see attached QMRF).
- See attached QPRF for reliability assessment.

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2009

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
Trimethylamine
EC Number:
200-875-0
EC Name:
Trimethylamine
Cas Number:
75-50-3
Molecular formula:
C3H9N
IUPAC Name:
N,N-dimethylmethanamine
Specific details on test material used for the study:
CN(C)C

Study design

Test substance input data:
- Molar mass: 59.11 g/mol (EPIWin)
- Data temperature: 25 °C (Daubert, Danner, 1989)
- Water solubility: 4.1E5 mg/L (Beilstein)
- Vapour pressure: 2.15E5 Pa (Daubert, Danner, 1989)
- log Pow: 0.0386 (EPIWin)
- Melting point: -117.2 °C (Beilstein)

Results and discussion

Percent distribution in media

Air (%):
91.5
Water (%):
8.54
Soil (%):
0
Sediment (%):
0
Susp. sediment (%):
0
Biota (%):
0
Aerosol (%):
0

Any other information on results incl. tables

The data refer to the uncharged molecule (calculated pKa value: 9.94)

Applicant's summary and conclusion

Conclusions:
In air TMA shows a distribution level of 91.5 % and in air 8.54 %.
Executive summary:

The distribution calculation for trimethylamine was determined for air with 91.5 % and for water with 8.54 %. The calculation was performed according Mackay Level I.