Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 231-765-0 | CAS number: 7722-84-1
- 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
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
The half-life for phototransformation in air of 24 hours will be used in the present assessment.
Key value for chemical safety assessment
Additional information
The following text was copied from the EU Risk Assessment Report (2003), pg. 30: "In polluted urban air half-lives of few hours have been reported (Sakugawa et al. 1990). No clear figures of overall photolysis rates have been presented in the literature. A study done by Olzyna (1988) in Whitetop Mountain indicates that in unpolluted air at night time (during 8-10 hours) indirect photolytic degradation decreases H2O2 levels by about 25% and consequently 50% decrease would take 16-20 hours (it is assumed that the night time production rate of H2O2 is low or negligible). In polluted air diurnal variations in concentrations seem to be more or less larger than in unpolluted air. According to the existing test data from different atmospheric conditions (Olszyna 1988, Sakugawa et al. 1990, Kleinman 1986) a half-life of 24 hours (rate constant of 0.029 h-1) will be chosen to represent the average degradation half-life in the atmosphere."
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