Registration Dossier
Registration Dossier
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EC number: 939-137-4 | CAS number: -
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- 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:
- 2 013
- Report date:
- 2013
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 substance name:
- Piperazine-1,4-diethanol
- EC Number:
- 204-586-0
- EC Name:
- Piperazine-1,4-diethanol
- Cas Number:
- 122-96-3
- Molecular formula:
- C8H18N2O2
- IUPAC Name:
- 2,2'-piperazine-1,4-diyldiethanol
Constituent 1
Study design
- Test substance input data:
- The following physicochemical properties of the substance were used to calculate the distribution:
- Molar mass: 174.24 g/mol
- Data temperature: 25 °C
- Water solubility: 1000000 g/m³ (BASF AG, 2001; SDS)
- Vapour pressure: 2.89E-04 Pa (@ 25 °C, calculated; MPBPVP v1.43 of EPI Suite v4.11)
- log Pow: -1.62 (measured @25°C and pH 9.4; BASF AG, 1989)
- Melting point: 133.5 °C (Phys Prop Database of EPI Suite v4.11)
- Henry´s law constant: 5.04E-08 Pa*m³/mol (Mackay Level I) - 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
- Water (%):
- 100
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
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