Registration Dossier
Registration Dossier
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EC number: 203-474-9 | CAS number: 107-22-2
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
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Accepted calculation method
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
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:
- Glyoxal
- EC Number:
- 203-474-9
- EC Name:
- Glyoxal
- Cas Number:
- 107-22-2
- Molecular formula:
- C2H2O2
- IUPAC Name:
- oxalaldehyde
Constituent 1
Study design
- Test substance input data:
- The following physico-chemical properties of the substance were used to calculate the distribution:
- molecular mass: 58.04 g/mol
- data temperature: 20 °C
- log Kow: -1.15 (4)
- water-solubility: 1.0E06 g/m³ (25 °C) (1)
- Henry´s law constant:0.117 Pa*m³/mol (5)
- vapour pressure: 2020 Pa (2)
- melting point: -25 °C (3)
source:
(1) measured: BASF (2002); BPD ID A3.05_01
(2) measured: BASF (2002); BPD ID A3.02_01
(3) measured: BASF (2002); BPD ID A3.01.1_01
(4) measured: BASF (2002); BPD ID A3.09_01
(5) calculated: Mackay L I programme - Environmental properties:
- Volume Density Org. C Fish lipid
(m³) (kg/m³) (g/g) (g/g)
air 6.0E+09 1.19
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
Results and discussion
Percent distribution in media
- Air (%):
- 4
- Water (%):
- 96
Any other information on results incl. tables
Over time, the substance will preferentially distribute into the compartment water.
Applicant's summary and conclusion
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