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Diss Factsheets
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EC number: 247-978-7 | CAS number: 26761-42-2
- 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
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Endpoint summary
Administrative data
Description of key information
In the assessment of potassium neodecanoate, read-across to the assessment entities soluble potassium substances and neodecanoic acid is applied since the ions of potassium neodecanoate determine its fate and toxicity in the environment.
Potassium
As an essential element for living organisms, potassium has a very low potential for toxicity to freshwater as well as saltwater organisms. Effect concentrations are available for several species but exceed corresponding OECD test limits. In sum, potassium has very low potential for acute aquatic toxicity.
Neodecanoic acid
Reliable acute data are available from GLP-conform guideline studies for three trophic levels: algae, invertebrates and fish
- an unbounded value of > 100 mg/L (96h-LL50) was identified for rainbow trout
- an unbounded value of > 457 mg/L (48h-EL50) was identified for the invertebrate species Daphnia magna
- an unbounded value of > 100 mg/L (72h-LL50) was identified for the algae Pseudokirchneriella subcapitata
Reliable chronic data are available from GLP-conform guideline studies for two trophic levels: invertebrates and fish
- 21-d NOEC of 4.78 mg/L neoheptanoic acid (structural analogue) for reproduction of D. magna; Chronic Value (ChV) of 1.7 mg/L (QSAR-based estimate) for daphnids
- 14-d NOEC of 2.22 mg/L neodecanoic acid for growth of Oncorrhynchus mykiss; Chronic Value (ChV) of 1.6 mg/L (QSAR-based estimate) for fish
-Regarding algae, an EC10 or NOEC is not available for neodecanoate. However, based on the fact that the EC50 for growth rate of algae is > 100 mg/L, we may assume that it is unlikely that the EC10/NOEC < 1 mg/L. According to the QSAR-based outcome of the model ECOSAR v.2.0, neodecanoic acid has a very low potential for chronic toxicity to green algae since the chronic value (ChV = 10^([log (LOEC x NOEC)]/2)) of 12.3 mg/L is >> 1 mg/L.
Regarding the toxicity to aquatic microorganisms, a 4-h NOEC of ≥ 200 mg/L for the inhibition of nitrification by microorganisms (Nitrosomonas sp.) is available.
In sum, neodecanoic acid has very low potential for acute aquatic toxicity and a low potential for chronic toxicity.
Potassium neodecanoate
According to aquatic toxicity data of the dissociation products of potassium neodecanoate, the aquatic hazard assessment is based on the most toxic moiety.
Regarding acute (short-term) toxicity, the potential is low since relevant EC/LC50 values of potassium ions and neodecanoate are above respective OECD test limits.
Regarding chronic (long-term) toxicity, potassium is not expected to have a high potential since potassium as essential macronutrient is added to aquatic test media. Existing aquatic toxicity data of neodecanoic acid and neoheptanoic acid are recalculated for potassium neodecanoate based on a maximum neodecanoate content of 81.4 %.
- 21-d NOEC of 5.87 mg/L for reproduction of D. magna; Chronic Value (ChV) of 2.09 mg/L (QSAR-based estimate) for daphnids
- 14-d NOEC of 2.71 mg/L for growth of Oncorrhynchus mykiss; Chronic Value (ChV) of 1.97 mg/L (QSAR-based estimate) for fish
Further, a 4-h NOEC > 245 mg/L for the inhibition of nitrification points to a very low potential for toxicity to sewage sludge microorganisms.
Additional information
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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