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Diss Factsheets
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EC number: 237-424-2 | CAS number: 13780-06-8
- 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:
- 0.015 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 4.9 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Sediment (marine water)
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Reliable (Klimisch 1 or 2) studies are available for acute toxicity to fish (rainbow trout) and crustacea (Daphnia magna and brown shrimp) for calcium nitrite, and for algal growth inhibition and microorganism respiration inhibition for the structural analogue sodium nitrite. The most sensitive trophic level based on acute data is Daphnia magna and this result is used in order to determine the environmental classification of calcium nitrite.
Conclusion on classification
In accordance with Regulation (EC) No. 1272/2008 (CLP), a substance should be classified as an acute aquatic hazard if the 96-hr LC50 for fish, the 72- or 96-hr EC50 for algae, or the 48-hr EC50 for crustaceans is 1 mg/L or less. The reliable short-term toxicity value (LC50/EC50) of calcium nitrite to aquatic invertebrates (Daphnia magna) is 15.3 mg/L (45 mg/L for a 34% solution; Kelly, 1996b) while the short-term toxicity values for calcium nitrite or the read-across compound sodium nitrite to aquatic species for the remaining trophic levels (as well as for brown shrimp) are somewhat higher (JAFA, 2005; Kelly, 1996a; Kelly, 1996c). Therefore, calcium nitrite does not require classification as an acute aquatic hazard under CLP.
The only available chronic aquatic toxicity data is a 72-hr NOEC of 100 mg/L from an algal growth inhibition study on the related substance sodium nitrite [96.1 mg calcium nitrite/L] (JAFA, 2005) [equivalent to about 96.1 mg calcium nitrite/L]. Under CLP, when chronic data are available for only one trophic level, the chronic classification is assessed on the basis of both the acute and chronic data (and with a consideration of biodegradability), with the most stringent classification applied. Biodegradation is not considered to be a relevant endpoint for calcium nitrite (this test method is not technically feasible for inorganics). As such, calcium nitrite does not require classification as a chronic aquatic hazard under CLP.
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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