Registration Dossier
Registration Dossier
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EC number: 219-854-2 | CAS number: 2551-62-4
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Widely used fugacity model, adequate for assessment.
Data source
Referenceopen allclose all
- Reference Type:
- other: model
- Title:
- Fugacity-based Multimedia Environmental Model Level III
- Author:
- CEMC
- Year:
- 2 002
- Bibliographic source:
- Fugacity-based Multimedia Environmental Model Level III (Canadian Environmental Modelling Centre - Trent University, Peterborough, Ontario, Canada)
- Reference Type:
- publication
- Title:
- Evaluating the environmental fate of types of chemicals using the EQC model.
- Author:
- Mackay D,Paterson S,Di Guardo A, Cowan CE
- Year:
- 1 996
- Bibliographic source:
- Environ. Toxicol. Chem. 15:1627-1637.
Materials and methods
- Model:
- calculation according to Mackay, Level III
- Calculation programme:
- Fugacity-based Multimedia Environmental Model Level III Version 2.70 (Canadian Environmental Modeling Centre - Trent University, Peterborough, Ontario, Canada)
- Release year:
- 2 002
- Media:
- other: air-water-soil-sediment
Test material
- Reference substance name:
- Sulphur hexafluoride
- EC Number:
- 219-854-2
- EC Name:
- Sulphur hexafluoride
- Cas Number:
- 2551-62-4
- Molecular formula:
- F6S
- IUPAC Name:
- sulphur hexafluoride
- Test material form:
- gas
- Details on test material:
- Considered as pure substance.
Constituent 1
Results and discussion
Percent distribution in media
- Air (%):
- 100
- Water (%):
- 0
- Soil (%):
- 0
- Sediment (%):
- 0
Any other information on results incl. tables
Fugacity Reaction Advection Mass Amount
(Pa) losses(%) losses(%) (%)
-----------------------------------------------------------------------------------------------
Air 1.7x10^-5 6x10^-8 100 100
Water 1.2x10^-5 5x10^-13 8x10^-5 8x10^-4
Soil 1.7x10^-5 2x10^-12 - 3x10^-3
Sediment 1.2x10^-5 2x10^-15 5x10^-9 2x10^-6
Residence time (air)
Advection 100 h
Reaction 1x10^11 h
Total 100 h The Level III model’s results indicated that SF6 would partition mainly into the air compartment (~100%) and about 0.001% and 0.003% in water and soil compartment, respectively. The estimated residence time of SF6 in the considered EQC (EQuilibrium Criterion) standard environment is 100 hrs. Advection is the main process of loss of SF6 from the considered EQC-standard environment.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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