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Diss Factsheets
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EC number: 700-536-1 | CAS number: 25628-08-4
- 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
Within 28 days, a degradation of 14 % was determined. The substance is classified as "Not ready biodegradable".
Key value for chemical safety assessment
Additional information
Study according to OECD 301E.
Read-across justification
Group:Tetraethylammonium perfluorobutanesulfonate (CAS no. 25628-08-4) and potassium perfluorobutanesulfonate (CAS no. 29420-49-3)
Justification:REACH regulation EC 1907/2006 and ECHA guidance document R.6 give that substances whose physicochemical, toxicological and ecotoxicological properties are likely to be similar, or follow a regular pattern as a result of structural similarity, may be considered as a group / category of substances. According to OECD, 2002, (ENV/JM/RD(2002)17/FINAL) “perfluorinated compounds represent a very unique chemistry”, at least substances with equal numbers of perfluorinated carbon atoms and functional groups. The 'Environmental Risk Evaluation Report' of Brooke et al., 2004, (Environment Agency, GB) differentiated perfluorinated substances in groups, consisting of salts with e.g. potassium and ammonium (including quartenary ammonium) as counterion. The substance which is used for read-across is potassium perfluorobutanesulfonate which consists of a C4 structure, a sulfonate moiety and the counterion potassium. Thus, in accordance with OECD, 2002, grouping and read-across based on the length of the perfluorinated carbon structure with a sulfonate moiety is possible. The criterion of structural similarity is fulfilled and both substances may be regarded as group with respect to chemical behaviour. Both substances are organic salts which show surface activity and both are, furthermore, anionic which makes it impossible to determine the partition coefficient. Both substances show no boiling point up to the decomposition temperature, are not flammable, not oxidising or explosive and not biodegradable. These examples show physico-chemical similarity and, thus, read across is justified.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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