Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 807-113-1 | CAS number: 3709-71-5
- 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

PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
All impurities identified as present in HFP kinetic dimer at > or = 0.1% are isomers or homologues of HFP kinetic dimer, with physical/chemical properties essentially the same as HFP kinetic dimer. Impurities therefore have PBT characteristics equivalent to HFP kinetic dimer. The ultimate degradation products are expected to be hydrofluoric acid, trifluoroacetic acid, isoperfluorobutyric acid and carbon dioxide. HF and CO2 are inorganic substances not needing a PBT assessment and TFA and PFBA are not bioconcentrating or toxic.
By screening and definitive REACH PBT criteria, HFP kinetic dimer is very persistent, “vP”. An evaluation of its fate in water or soil concludes that HFP kinetic dimer is rapidly removed to the atmospheric compartment by volatilization, and it will not partition into water or soil from the atmosphere. Therefore, this substance is non-persistent in the aquatic and terrestrial environments. It is very persistent only in the atmosphere and is subject to long-range transport in the atmosphere but is not subject to deposition in remote or pristine environments. Due to mixing in the atmosphere and lack of partitioning out of the atmosphere, concentrations in the biosphere will be negligible. Widespread exposure to HFP kinetic dimer will not occur.
Based on the expected partitioning behavior of HFP kinetic dimer, additional laboratory studies on the biodegradation and bioaccumulation in the water, sediment and soil compartments are not relevant for the evaluation of PBT properties of this substance. The “B” criterion in aquatic organisms is not met due to lack of exposure. The calculated log Koa value indicates that HFP kinetic dimer cannot bioaccumulate in air-breathing animals. Collectively, the log Kow, the HLC, and the calculated Koa indicate that HFP kinetic dimer is not expected to bioaccumulate in aquatic, sediment or soil organisms. HFP kinetic dimer does not fulfill the criteria for bioaccumulative (“B”) or very bioaccumulative (“vB”).
Based on available data, HFP kinetic dimer is not classified as carcinogenic, mutagenic, or toxic to reproduction or specific target organ toxic after repeated dose. HFP kinetic dimer does not meet the REACH “T” criteria for mammalian toxicity. This information combined with the lack of acute aquatic toxicity can be used to conclude that HFP kinetic dimer does not fulfill the screening criteria for toxic (“T”).
The data show that the properties of the substance do NOT meet the specific criteria in Annex XIII Section 1, or while not allowing a direct comparison with all the criteria, nevertheless indicate that the substance would not have these properties. Substance is NOT PBT or vPvB.
- Likely routes of exposure:
Not Applicable
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