Registration Dossier
Registration Dossier
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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.
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study based on accepted scientific standards
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Principles of method if other than guideline:
- Preparation of the water-accommodated fraction (WAF) as part of a toxicity study.
Closed test system: water-accommodated fractions (WAF) and the biological test were conducted under closed conditions - GLP compliance:
- yes
- Type of method:
- flask method
Test material
- Reference substance name:
- Distillates (coal tar), naphthalene oils
- EC Number:
- 283-484-8
- EC Name:
- Distillates (coal tar), naphthalene oils
- Cas Number:
- 84650-04-4
- IUPAC Name:
- 84650-04-4
- Details on test material:
- - Name of test material (as cited in study report): naphthalene oil
- Molecular formula (if other than submission substance): not applicable
- Molecular weight (if other than submission substance): not applicable
- Substance type: organic
- Physical state: solid
- Stability under test conditions: WAF (water accommodated fraction) limited
- Storage condition of test material: room temperature, exclusion of light
Constituent 1
Results and discussion
Water solubility
- Water solubility:
- ca. 2 - 15.5 other: mg TOC/L
- Temp.:
- 20 °C
- pH:
- 8
- Details on results:
- Solubility data relate to loadings of 2.5 - 50 mg oil/L (see Remarks on results below).
Any other information on results incl. tables
- 2.0 - 2.5 mg/L (at 2.5 mg oil/L),
- 5.5 - 6.0 mg/L (at 10 mg oil/L),
- 15 - 16 mg/L (at 50 mg oil/L)
Water solubility (as water-accommodated fraction) of Naphthalene Oil at 20 °C
in test medium (daphnia) at various loadings (closed system):
Based on measured data (see tables below), the oil-related TOC values were approximately
Loading [mg/L] |
||||
Control |
2.5 |
10 |
50 |
|
WAF [mg TOC/L] |
||||
24 h (stirring) |
1.9 |
4.3 |
7.6 |
17.1 |
Note: Values represent TOC including background.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
