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Diss Factsheets
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EC number: 201-969-4 | CAS number: 90-15-3
- 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
Endpoint summary
Administrative data
Description of key information
The acute toxicity of 1-naphthol has been studied in eight species representing three trophic levels. The catfish Mystus cavasius had a 96 hour LC50 of 0.33 mg/L (95% confidence limits 0.25 -0.4 mg/L, flow-through exposure (key). The 96 hour LC50 for four additional fish species ranged from 1.1 – 4.63 mg/L (Geiger et al 1984, Holcombe et al 1984, Tilak et al 1981) (supporting). The invertebrate Daphnia magna had a 48 hour EC50 of 2.51 mg/L (Beasley 2016) and the 72 hours EC50 value for inhibition of specific growth rate in the green algae Pseudokrichneriella subcapitata was >2.18 mg a.i./L.
The algae ErC10 and NOEC values for inhibition of specific growth were > 2.18 and 0.0173 mg a.i./L respectively (Bergfield 2016).
1-naphthol tested in a 21-day Daphnia magna study gave an EC 50 > 1 mg/L (immobilization), NOEC 0.25 mg/L (reproduction rate), LOEC 0.5 mg/L (reproduction rate) and MATC 0.38 mg/L (reproduction rate).
Additional information
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