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EC number: 244-479-6 | CAS number: 21615-47-4
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Ammonium undecafluorohexanoate (CAS 21615-47-4) in not considered to be readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
- Type of water:
- freshwater
Additional information
All available information on the biodegradation of ammonium
undecafluorohexanoate (CAS 21615-47-4) was combined in a
weight-of-evidence approach.
An expert statement from the laboratory contracted to perform an
experimental study on biodegradation is available concluding that the
substance is not readily biodegradable (CERI, 2017). This statement is
based on (Q)SAR calculations using BIOWIN v4.10 and experimental results
from structurally similar substances. The (Q)SAR calculations indicate
that ammonium undecafluorohexanoate is not readily biodegradable.
Experimental results for the structurally similar substances
perfluorooctanoic acid, ammonium salt (CAS 3825-26-1) and 1H, 1H,
7H-dodecafluoroheptanol (CAS 335-99-9) were discussed in the available
statement and revealed that they are not readily biodegradable as well.
The two studies were performed according to OECD 301C and resulted in
degradation of 7 and 9% after 28 d (based on BOD), respectively.
In addition the biodegradation of perfluorohexanoic acid was
investigated in an experimental study according to OECD 301 D (Saez et
al., 2008). Activated sludge from a sewage treatment plant treating
predominantly domestic sewage was used as inoculum and the test item was
applied at a concentration of 4 mg/L. After four weeks approx. 15% of
the substance was degraded. The degradation increased to approx. 45%
after 15 weeks indicating a poor degradability. The degradation was
determined by HPLC/MS analysis.
All available data indicate that Ammonium undecafluorohexanoate is not
expected to be readily biodegradable according to the OECD criteria.
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