Registration Dossier
Registration Dossier
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EC number: 203-639-5 | CAS number: 109-01-3
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Study period:
- 2013-03-25
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Level 1 fugacity modelling accorind to D. Mackay
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 991
Materials and methods
- Model:
- calculation according to Mackay, Level I
Test material
- Reference substance name:
- 1-methylpiperazine
- EC Number:
- 203-639-5
- EC Name:
- 1-methylpiperazine
- Cas Number:
- 109-01-3
- Molecular formula:
- C5H12N2
- IUPAC Name:
- 1-methylpiperazine
Constituent 1
Results and discussion
Percent distribution in media
- Air (%):
- 2.53
- Water (%):
- 37.57
- Soil (%):
- 58.56
- Sediment (%):
- 1.31
- Susp. sediment (%):
- 0.041
- Biota (%):
- 0
Applicant's summary and conclusion
- Conclusions:
- The distribution is calculated using a validated spreadsheet model. Results of this model are indicating the distribution without degradation after infinite equilibrium time. The degradation rate in these compartments may be different. But in the absence of any measured half-lifes in these compartments it is considered more suitable to use a level 1 calculation for the prediction of the possible compartments of concern.
- Executive summary:
According to Mackay Level 1 distribution modelling will 1 -methylpiperazine partition for 58.6% to soil and for 37.6% to water.
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