Registration Dossier
Registration Dossier
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EC number: 420-640-8 | CAS number: 138495-42-8
Henry's Law constant
Administrative data
- Endpoint:
- Henry's law constant
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable calculation method using measured physical chemical properties.
Data source
Reference
- Reference Type:
- other: REACH Guidance
- Title:
- Chapter R.16: Environmental Exposure Estimation
- Author:
- European Chemicals Agency
- Year:
- 2 009
- Bibliographic source:
- Guidance on Information, Requirements, and Chemical Safety Assessment
- Report date:
- 2009
Materials and methods
- Principles of method if other than guideline:
- Calculated using physico-chemico properties in CSR section 1.3 using EQUATION R.16-4 (HENRY = (VP*MW/Solubility) in the REACH guidance R.16.
- GLP compliance:
- no
Test material
- Reference substance name:
- -
- EC Number:
- 420-640-8
- EC Name:
- -
- Cas Number:
- 138495-42-8
- Molecular formula:
- C5H2F10
- IUPAC Name:
- (3R,4R)-1,1,1,2,2,3,4,5,5,5-decafluoropentane; (3S,4S)-1,1,1,2,2,3,4,5,5,5-decafluoropentane
Constituent 1
Results and discussion
Henry's Law constant Hopen allclose all
- H:
- 49 600 Pa m³/mol
- H:
- other: This value indicates that the test substance would readily volatilize from water and is unlikely to repartition to water.
Applicant's summary and conclusion
- Conclusions:
- Calculated HLC of 4.96E4 Pa*m3/mol indicates the test substance would readily volatilize from water and is unlikely to repartition to water.
- Executive summary:
A Henry's Law constant of 4.96E4 Pa*m3/mol was calculated for the test substance from measured vapour pressure (24800 Pa) and solubility (126 mg/L) values and molecular weight (252.05 g/mol) using EQUATION R.16-4 (Henry = (VP*MW)/Solubility) in the REACH guidance R.16. This value indicates that the test substance would readily volatilize from water and is unlikely to repartition to water.
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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