Registration Dossier
Registration Dossier
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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 295-310-8 | CAS number: 91995-49-2 A complex combination of organic compounds obtained as a filtrate from the crystallization of the naphthalene fraction from coal tar and boiling in the range of approximately 200°C to 230°C (392°F to 446°F). Contains chiefly naphthalene, thionaphthene and alkylnaphthalenes.
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Studies comparable to guideline studies, based on accepted scientific principles
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Relationships between octanol-water partition coefficient and aqueous solubility
- Author:
- Miller MM, Wasik P, Huang G-L, Shiu W-Y, and Mackay D
- Year:
- 1 985
- Bibliographic source:
- Environ. Sci. Technol., 19, 522-529
- Reference Type:
- review article or handbook
- Title:
- Selected non-heterocyclic polycyclic aromatic hydrocarbons
- Author:
- WHO (World Health Organization)
- Year:
- 1 998
- Bibliographic source:
- Environmental Health Criteria, 202, Intern. Programme on Chemical Safety (IPCS), Geneva, 1998
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- GLP compliance:
- no
- Type of method:
- shake-flask method to: flask method
- Remarks:
- according to Miller et al. 1985
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Automatically generated during migration to IUCLID 6, no data available
- IUPAC Name:
- Automatically generated during migration to IUCLID 6, no data available
- Details on test material:
- CAS-No. Concentration [%'w/w]
=========================================
Naphthalene 91-20-3 >= 35
1-Methylnaphthalene 90-12-0 >= 1
2-Methylnaphthalene 91-57-6 >= 3
Acenaphthene 83-32-9 >= 0.5
=========================================
Constituent 1
Study design
- Analytical method:
- gas chromatography
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- 3.4 - 4
- Temp.:
- 25 °C
- pH:
- 7 - 7.5
- Details on results:
- The logPow range of 40 - 80 % of naphthalene oil ingredients is between 3.4 and 4.0 with the estimated average of 3.6.
Any other information on results incl. tables
Summary of n-octanol-water partition coefficients (as log Pow) for key components of naphthalene oil:
CAS-No. |
LogPow |
|
Naphthalene |
91-20-3 |
3.351) |
1-Methylnaphthalene |
90-12-0 |
3.871) |
2-Methylnaphthalene |
91-57-6 |
3.861) |
Acenaphthene |
83-32-9 |
3.922) |
1) Miller et al 1985
2) WHO 1998
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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