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EC number: 480-340-8 | CAS number: -
- 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
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.1 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.01 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 1 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.46 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.046 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.049 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
No data are available for the assessment of the acute toxicity potential of the substance to fish. For this reason data on the dissociation substances were used for the the evaluation of short-term toxicity to fish. For algae, daphnia and microorganisms there are available data on the substance toxicity potential. The results of the studies for each organism are presented below.
Short-term toxicity to fish
Three studies from literature are used for the assessment of the toxicity of perchlorate to the fish after 96 hours of exposure.
- Zebrafish Danio rerio lavrae, static-renewal, ASTM E729 -90: LC50 (96 h) = 1365 mg/l (measured).
- Juvenille zebrafish Danio rerio, static-renewal, ASTM E792 -96: LC50 (96 h) = 2532 mg/l (measured).
- Rainbow trout fry and juvenille bluegill sunfish, flow-through, EPA OPPTS 850.1075, ASTM E729 -96, 2000: for rainbow trout: EC50 (96 h) = 2010 mg/l (mean measured); for bluegill sunfish: EC50 (96 h) = 1470 mg/l (mean measured).
Two studies from literature are used for the assessment of the toxicity of triethanolamine to fish.
Fathead minnows, flow-through: LC50 (96 h) = 11.8 g/l (measured), EC50 (96 h) = 11.8 g/l (measured).
Goldfish, APHA (1971): LC50 (24 h) > 5000 mg/l (measured).
For the chemical safety assessment an EC50 of 1470 mg/l is used based on a study on perchlorate. This value is one of the lowest values obtained in all the studies available (worst case senario). A lowest value determined in another study was 1365 mg/l (LD50) but even if this value is lower, it is not used for the chemical safety assessment since an EC50 instead of LC50 is used as it takes in consideration severe effects and not only mortality.
Short-term toxicity to aquatic invertebrates
Daphnia magna, limit static test, OECD 202, EU C.2: EC50 > 100 mg/l (nominal).
Toxicity to aquatic algae and cyanobacteria
Desmodesmus subspicatus, OECD 201, EU C.3: ErC50 (72 h) > 460 mg/l (nominal), NOEC (growth rate) = 10 mg/l (nominal),EbC50 (72 h) = 380 mg/l (nominal) and EyC50 (72 h) = 230 mg/l (nominal).
Toxicity to microorganisms
OECD guideline 209, EU C.11: EC50 (3 h) > 1000 mg/l (nominal), NOEC (3 h)≈ 10 mg/l (nominal)
Conclusion on classification
Based on the available studies the following results were obtained for daphnia and algae. No data are available for the assessment of the acute toxicity potential of the substance to fish. For this reason data on the dissociation substances were used for the evaluation of short-term toxicity to fish and the EC50 value chocen amongst others was the one obtained for perchlorate.
For the evaluation of the classification of the substance the following effect concentrations are taken into consideration:
- for daphnia: EC50 (48h) > 100 mg/l (nominal) and
- for algae: ErC50 (72h, growth rate) > 460 mg/l (nominal) and NOEC (72h, growth rate) = 10 mg/l (nominal).
- for fish (juvenille bluegill sunfish): EC50 (96h) = 1470 mg/l (measured)
The substance is readily biodegradable and the EC50 for the three trophic levels is higher than the threshold for classification.
According to the CLP Regulation (EC) No. 1272/2008, a classification as harmful/toxic for aquatic life is not proposed for the substance.
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.
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