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EC number: 232-019-7 | CAS number: 7783-66-6
- 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
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Bioaccumulation for iodine pentafluoride is not to be expected as the substance instantly dissociates into iodate and fluoride ions. Data available on these ions indicates that bioaccumulation and/or secondary poisoning is unlikely to occur.
Key value for chemical safety assessment
Additional information
Bioaccumulation of iodine pentafluoride as such will not occur as the substance rapidly and violently dissociates into its various ions. Data is available on uptake of iodine species (relevant for iodide and iodate) and fluoride ions. The availability of inorganic substances for uptake may vary depending on factors such as pH, hardness, temperature and redox conditions, all of which may affect speciation. The following information is available on bioaccumulation of iodine species and fluoride ions:
Iodine species:
Molecular iodine is a chemically unstable element with oxidizing properties and it is assumed that when iodine reaches fresh- or marine water systems it will speciate into iodate and iodide. In a document from the US Department of health and human services (US-DHHS, 2004 (and references therein)), it is stated that "Iodine has been shown to bioaccumulate in many seawater and freshwater aquatic plants. Freshwater plants (e.g., algae) contain 10-5% by weight of iodine, whereas marine plants (algae) contain 10-3% by weight. In freshwater fish, iodine concentrations in tissues range from 0.003 to 0.81 ppm, which gives concentration ratios (fish/water) of 0.9–810. In marine fish, the iodine concentrations range between 0.023 and 0.11 ppm, yielding concentration ratios of between 10 and 20". Further, "Aquatic bioaccumulation factors for iodine in fresh water are 40 (algae), 5 (invertebrates), and 15 (fish); in salt water, these factors are 4,000–10,000 (algae), 50–100 (invertebrates), and 10–20 (fish). Certain seaweeds and algae can concentrate iodine to levels as high as 0.8–4.5 g/kg of dried material; these high levels are usually associated with the relatively high levels of iodine in seawater (50 μg/kg)".
In a draft Competent Authority Report on iodine (CAR, draft april 2011), it is stated that "Bioaccumulation (BCF) values for iodine are generally low (0.001 to 810 for freshwater and marine fish, freshwater and marine invertebrates, marine and terrestrial plants), [...] although values up to 10000 have been found. However, the reported values should be treated with caution, since they are not acquired from bioaccumulation studies, but are merely a comparison of iodine content in the source and in the organism. High intracellular iodine concentrations may have other explanations, e.g. physiological processes like active transport and intracellular enzymatic reactions".
Based on the available data it may be concluded that iodine is concentrated by aquatic organisms from the surrounding water, and that the degree of concentration is species-dependent, varying from insignificant in fish and most invertebrates to highly significant in algae. In view of the decreasing BCF values with increasing trophic level in the food web (BCF algae > BCFinvertebrates > BCFfish), it is further concluded that biomagnification is of little significance.
Fluoride:
In the EU-RAR (ECB, 2001) on hydrogen fluoride, bioaccumulation of fluoride in freshwater and marine organisms is summarized as follows: “In aquatic organisms fluoride accumulates primarily in the exoskeleton of crustacea and in the bones of fish. No F accumulation was reported in edible tissues. In fish, BCF-values of 53-58 (d.w.) and <2 (w.w.) were found. In crustacea BCF-values based on whole body fluoride content are found to be <1 (d.w.). The highest reported BCF-value for Mollusca and aquatic macrophyta were 3.2 and 7.5 (w.w.), respectively. In an experimental marine ecosystem with fish, crustaceans and plants, F was found to accumulate in all species. The highest value, 149, was found in fish. BCF-values for crustacea range from 27 to 62. Fluoride concentrations up to 30 mg F/kg were found in consumption fish”.
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