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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 283-815-6 | CAS number: 84731-55-5
- 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
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- yes
- Remarks:
- See Details on methods
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- yes
- Remarks:
- See Details on methods
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Specific details on test material used for the study:
- - Stability under test conditions: Stable
- Treatment of test material prior to testing: None
- Preliminary purification step: None
- Final preparation of a solid: Applied neat - Surface tension:
- ca. 39.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.003 g/L
- Remarks on result:
- other: The test was conducted on aqueous solutions of test item prepared at 90% saturation concentration
- Conclusions:
- The mean surface tension of duplicate aqueous solutions of lithium isooctadecanoate prepared at 90% saturation concentration has been determined to be 39.5 mN/m at 20.0 ± 0.5 °C. The test item was considered to be surface-active.
- Executive summary:
The surface tension of lithium isooctadecanoate was conducted in a GLP-compliant ring balance test following OECD guideline 115 (Envigo 2017). The study deviated from the guideline because the test item formed stable dispersions from which the undissolved test item could not be removed. These were not considered to have affected the integrity of the study. The study is considered to be relevant and reliable for use for this endpoint. Lithium isooctadecanoate has a surface tension below 60 mN/m and is therefore regarded as being surface active. This is consistent with the observed characteristics of lithium isooctadecanoate in water and its structure, which is representative of the "soap" surfactant class.
Reference
Table 1. Readings, times and temperatures for the sample solutions
Sample | Time (mins) | Reading (mN/m) | Temperature (°C) |
1 | 90 | 40 | 20 |
1 | 139 | 40 | 20 |
1 | 168 | 40 | 20 |
1 | 192 | 40 | 20 |
1 | 209 | 40 | 20 |
1 | 299 | 40 | 20 |
1 | Mean | 40 | 20 |
2 | 100 | 39 | 20 |
2 | 157 | 38.5 | 20 |
2 | 177 | 39 | 20 |
2 | 200 | 39 | 20 |
2 | 302 | 39 | 20 |
2 | Mean | 38.9 | 20 |
1 and 2 | Mean | 39.5 | 20 |
According to criteria mentioned in EC Method A.5, substances showing a surface tension lower than 60 mN/m under the conditions of this method should be regarded as being surface active.
On completion of the static re-equilibration of the saturated sample solutions at 20°C, the solutions were observed as translucent due to a dispersion of excess, undissolved test item. However this dispersion could not be removed by centrifugation, similar to issues encountered during attempted determination of the water solubility, such that the final surface tension sample solutions also remained translucent with this dispersion. The presence of this dispersion was not considered to impact on the validity of the determination on the basis of these dispersion characteristics of the test item replicated expected behaviour on accidental environmental release. In addition, although the presence of the dispersion indicated that the sample solution/dispersion concentrations were at a concentration above that of the critical micelle concentration of the test item, above this concentration, any increasing concentration of dispersed material has only a limited influence on the overall surface tension of the sample.
The mean surface tension of duplicate aqueous solutions of test item prepared at 90% saturation concentration has been determined to be 39.5 mN/m at 20.0 ± 0.5°C. The test item was considered to be surface-active.
Description of key information
The surface tension of duplicate 90% saturated aqueous solutions of lithium isooctadecanoate has been determined to be 39.5 mN/m at 20.0 ± 0.5°C.
Key value for chemical safety assessment
- Surface tension:
- 39.5
Additional information
The surface tension of lithium isooctadecanoate was determined in a GLP-compliant ring balance test following OECD guideline 115 (Envigo 2017). The study deviated from the guideline because the test item formed stable dispersions from which the undissolved test item could not be removed. These were not considered to have affected the integrity of the study. The study is considered to be relevant and reliable for use for this endpoint. Lithium isooctadecanoate has a surface tension below 60 mN/m and is therefore regarded as being surface active. This is consistent with the observed characteristics of lithium isooctadecanoate in water and its structure, which is representative of the "soap" surfactant class.
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.