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EC number: 226-970-7 | CAS number: 5580-57-4
- 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
'Yellow disazo condensation pigments' are with high probability not harmful to aquatic algae.
No toxic effects occur at the range of the substances solubility.
EC50 (72h) > 100 mg/L; NOEC = 40 mg/L (nominal) for growth rate of Desmodesmus subspicatus (OECD 201)
Key value for chemical safety assessment
Additional information
The toxicity on aquatic algae was investigated for one ‘yellow disazo condensation pigment’ (CAS 5280-80-8) (CETA, 2011). The study was conducted according to OECD guideline 201 under GLP conditions with the green algae Desmodesmus subspicatus as test species. Based on the low water solubility of the test item, a saturated stock solution was prepared and the test was conducted as limit test with a nominal concentration of 100 mg/L. The stock solution was filtered through 0.45 µm filter. After 72 hours of exposure the EC50 value for growth inhibition was > 100 mg/L. The data from a preliminary test were used for the determination of NOEC values. For growth inhibition the 72 hours NOEC is reported with 40 mg/L (nominal). Therefore it can be concluded that ‘yellow disazo condensation pigments’ cause no toxic effects on green algae within the range of solubility.
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