Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 262-987-6 | CAS number: 61788-56-5
- 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
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
The substance is surface active and is not readily soluble in water but forms a colloidal dispersion in aqueous environments. As such, no partition coefficient value could be determined for the substance.
Key value for chemical safety assessment
Additional information
The octanol-water partition coefficient of naphthenic acids, lithium salts was investigated in a GLP-compliant study (Envigo 2018). None of the experimental methods were suitable for determining the partition coefficient of the substance due to the properties of the substance in water. The substance is surface active and is not readily soluble in water but forms a colloidal dispersion in aqueous environments. As such, no partition coefficient value could be determined for the substance. No determination was carried out using the shake flask procedure as the test item demonstrated significant surface-active properties; the procedure is not suitable for surface-active substances. Similarly the HPLC estimation method (EU Method A.8 / OECD Method 117) is not recommended for surface-active compounds, and also is invalid for the evaluation of salts, as it cannot address the whole salt. The test item has been demonstrated not to be readily soluble in water but forms a colloidal dispersion in an aqueous environment due to self-aggregation properties of the substance, and therefore the slow stir method is not considered suitable. The self-aggregation properties also prevented estimation of the solubility ratio of the substance in n-octanol and water, in isolation.
As lithium naphthenate is a UVCB consisting of a large number of different constituents, partition coefficient values have been predicted for representative structures within the UVCB. The partition coefficient values of the representative structures of lithium naphthenate were estimated using a QSAR model (KOWWIN v1.68 in EPISuite v4.11, US EPA 2009), following the Atom/Fragment Contribution method. As lithium naphthenate is an ionisable salt, the partition coefficient can vary greatly depending on pH and the pKa of the substance. In order to compare partition coefficient values of different, ionizable compounds on a relative basis, partition coefficient values are sometimes reported as "corrected for ionization", indicating that the value represents the partition coefficient at a pH where a compound exists primarily in the non-ionized form. KOWWIN provides estimates for the ionised acid rather than lithium naphthenate. The partition coefficient values of the representative structures for lithium naphthenate are estimated to give a log Kow range of -0.96 to 11.15.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.