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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
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The toxicity of iodine pentafluoride to microorganisms is derived from experimental data with its degradation products iodide, iodate and fluoride. As no data with iodate and iodide are available for this endpoint, an experimental study with iodine is assessed. In this study a EC10 value of 110 mg/L and a EC50 value of 280 mg/L were determined. After correction for molecular weight, the EC10 and EC50 values for iodate are 76 mg/L and 193 mg/L, respectively. For iodide correction for molecular weight gives EC10 and EC50 values of 55 mg/L and 140 mg/L, respectively.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 140 mg/L
- EC10 or NOEC for microorganisms:
- 55 mg/L
Additional information
No aquatic toxicity studies with iodine pentafluoride are available or can be performed as in contact with water iodine pentafluoride reacts instantly and violently under formation of hydrogen fluoride and iodate. Hydrogen fluoride will further react to fluoride and iodate in water forms an equilibrium with iodide. Therefore available data from studies with fluoride, iodate and iodide are given as indication of the aquatic toxicity of iodine pentafluoride. As no data on iodate and iodide is available, read across is made to the aquatic toxicity data of iodine (I2).
In the EU Risk Assessment Report for hydrogen fluoride several studies with micro-organisms are reported (EU-RAR, 2001). The long-term NOEC-values for microorganisms range from 7.1 to 510 mg/L. In the EU-RAR it is concluded that only the results of an activated sludge test (3h-EC10 value of 510 mg fluoride/L) and a test on Pseudomonas putida (NOEC of 231 mg fluoride/L) can theoretically be used for deriving a PNEC for microorganisms. As the EC10 -value of 510 mg fluoride/L from the activated sludge test brings about the lowest PNEC, this study is concluded to be critical. As no new data have become available since the EU-RAR, this conclusion is adopted for this substance evaluation.
A GLP-compliant OECD guideline 209 study is available for iodine (Notox, 2010). In this 3 -hour respiration inhibition test, activated sludge (from a municipal sewage treatment plant receiving predominantly domestic sewage) was exposed to iodine concentrations of up to 1000 mg/L. Iodine showed significant inhibition of respiration rate of the sludge at and above a loading rate of 100 mg/L. The 3h-EC10 for iodine is 110 mg/L and the 3 h-EC50 is 280 mg/L.
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