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Diss Factsheets
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EC number: 235-702-8 | CAS number: 12578-12-0
- 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
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Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
- The acute toxicity values (72h-EC50) for Pseudokirchneriella subcapitata varied between 20.5 µg dissolved Pb/L (at pH 7.6 and hardness of 24 mg/L as CaCO3) and 364 µg dissolved Pb/L (at pH 6 and hardness of 24 mg/L as CaCO3).
- The acute toxicity value for the freshwater alga Chlorella kesslerii (48 h EC50) was 388 µg dissolved Pb/L, and
- The acute toxicity value for the freshwater alga Chlamydomonas reinhardtii (48 h EC50) was 171.8 µg dissolved Pb/L.
- Chronic high quality no-effect levels for freshwater algae were situated between 6.1 µg dissolved Pb/L and 190.0 µg dissolved Pb/L (both datapoints for Pseudokirchneriella subcapitata).
- The chronic toxicity value for the freshwater alga Chlorella kesslerii was 120 µg dissolved Pb/L (48h NOEC).
- The chronic toxicity value for the freshwater alga Chlamydomonas reinhardtii was 82.3 µg dissolved Pb/L (48h NOEC).
For algae, 17 individual reliable freshwater acute toxicity data points for three species (Pseudokirchneriella subcapitata, Chlorella kesslerii, Chlamydomonas reinhardtii) were put forward for hazard assessment purposes.
For algae, 16 individual reliable freshwater chronic toxicity data points for three species (Pseudokirchneriella subcapitata, Chlorella kesslerii, Chlamydomonas reinhardtii) were put forward for hazard assessment purposes.
High quality chronic no-effect levels for marine algae were available for three different species (Skeletonema costatum, Dunaliella tertiolecta, and Phaeodactylum tricornutum) and were situated between 29.4 µg dissolved Pb/L (Skeletonema costatum; endpoint: yield) and 1234 µg dissolved Pb/L (Phaeodactylum tricornutum; endpoint: growth rate).
Key value for chemical safety assessment
Additional information
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.
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