Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
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.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 205-182-7 | CAS number: 135-19-3
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_ecotoxicological-information.png)
Short-term toxicity to fish
Administrative data
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study with limited documentation and with no data on GLP compliance. In the OECD SIDS on 2-Naphthol (2002) a similar reliability was assigned.
Data source
Reference
- Reference Type:
- publication
- Title:
- Trans Am Fish Soc 113
- Author:
- Milllemann RE et al
- Year:
- 1 984
- Bibliographic source:
- Millemann RE et al; Trans Am Fish Soc 113 (1): 74-85 (1984)
Materials and methods
Test guideline
- Guideline:
- other: Acute Toxicity to Fish
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 2-naphthol
- EC Number:
- 205-182-7
- EC Name:
- 2-naphthol
- Cas Number:
- 135-19-3
- Molecular formula:
- C10H8O
- IUPAC Name:
- 2-naphthol
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Details on test solutions:
- Test solution was prepared with well water (pH: 7.8; alkalinity and hardness 120 and 140 mg/l as CaCO3)
Test organisms
- Test organisms (species):
- Pimephales promelas
Study design
- Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 96 h
Test conditions
- Hardness:
- alkalinity and hardness 120 and 140 mg/l as CaCO3
- Test temperature:
- 20 +/- 0.5 degree C
- pH:
- 7.8
- Dissolved oxygen:
- DO changes from a mean of 8.5 mg/l at time 0 to 4.3 mg/l resp. 6.5 mg/l after 48 h.
- Salinity:
- no data
- Nominal and measured concentrations:
- no data
- Details on test conditions:
- 7.6-liter aquaria covered with aluminium foil were used as test vessels; each aquaria contained 6 l of test solution and 5 fish. 2 aquaria were used for each of the 3 to 4 test concentrations.
Results and discussion
Effect concentrations
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- 3.46 mg/L
- Remarks on result:
- other: Juvenile; 95 % Conf. Lim. 2.43 - 3.90 mg/l
Applicant's summary and conclusion
- Conclusions:
- A test on acute toxicity to fish for 96h shows a value of LC50 of 3.46 mg/L.
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.
![ECHA](/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/echa_logo.png)