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EC number: 231-193-1 | CAS number: 7446-07-3
- 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
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 7.24 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 72.4 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.724 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 3.2 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- no exposure of sediment expected
Sediment (marine water)
- Hazard assessment conclusion:
- no exposure of sediment expected
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no exposure of soil expected
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
- the water solubility (measured through a 24-hour Dissolution Screening test or estimated e.g. from the solubility product) is greater or equal to the acute ERV of the dissolved metal ion concentration;
Classification for environment is implemented according to the approach specified for metals outlined in the “Guidance on the Application of the CLP” (April, 2012).
Based on the solubility values obtained from the transformation/dissolution test and the respective Effect Reference Values (ERVs) for the compound the following classification for environmental hazards has to be assigned for Tellurium dioxide:
Effect Reference Values (ERVs):
|
Tellurium dioxide |
|
Transformation/dissolution test: Screening test: 24 hours, loading 100 mg/L pH 6 pH 8
Main test: pH 8, equilibrium after 7 day: Loading 1mg/L Loading 10 mg/L Loading 100 mg/L |
|
2.433 mg/L (Te) 30.6 mg/L (Te)
698.9 µg/L (Te) 6.254 mg/L (Te) 30.72 mg/L (Te) |
Short term toxicity to fish:
|
|
LC50 > 46.4 mg/L TeO2 (measured) |
Short term toxicity to aquatic invertebrates: |
|
EC50 7.24 mg/L TeO2 (measured) |
Short term toxicity to aquatic alga and cyanobacteria |
|
EC50 > 14.7 mg/L TeO2 NOEC 4.17 mg/L TeO2 (measured) |
Data used as basis for classification and labelling:
Lowest acute ERV (effect reference value): Short term toxicity to aquatic invertebrates:
EC50 7.24 mg/L TeO2 (5.79 mg Te/L).
T/D data: 30.6 mg/L from Screening Test (loading 100 mg/L)
In the main study the equilibrium for Tellurium dioxide has been reached after 7 days (30.72 mg/L for loading of 100 mg/L) at the target pH of 8.
Classification is established according to guidance on CLP application 11-2013 –Annex IV classification of metals, citations are given in italic:
Classification strategies for metal compounds
A metal compound will be considered as readily soluble if:
Tellurium dioxide: (T/D – 30.60 mg/L > lowest acute value of 5.79 mg/L)
Where the acute ERV for the metal ions of concern corrected for the molecular weight of the compound (further called as acute ERVcompound) is greater than 1 mg/l, the metal compounds need not to be considered further in the classification scheme for acute hazard.
Tellurium dioxide: lowest acute ERVcompound of 7.24 mg/L
The surrogate approach
Readily soluble metal compounds
In absence of relevant chronic toxicity data, and unless there is evidence of both rapid environmental transformation and evidence of no bioaccumulation (see sections IV.3 and IV.4),
b) Category Chronic 2 if the acute ERVcompound > 1mg/l and ≤ 10 mg/l; or
Tellurium dioxide: (lowest acute ERVcompound of 7.24 mg/L)
Conclusion on classification and labelling for environmental hazards:
Tellurium dioxide: no classification for acute environmental hazards
Category Chronic 2
(H411 – Toxic to aquatic life with long lasting effects)
M-factors are only applicable to the concentration of a substance classified as hazardous to the aquatic environment (categories Acute 1 and Chronic 1)...
Hazardous to the aquatic environment:
· Acute/short-term: No classification required
· Long-term:
Aquatic Chronic 2
H411: Toxic to aquatic life with long lasting effects.
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.