Registration Dossier
Registration Dossier
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EC number: 234-758-0 | CAS number: 12031-80-0
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06 SEP 2021 - 28 SEP 2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- adopted July 27, 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- Official Journal of the European Union L 81/1, March 19, 2014
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7840 (Water Solubility)
- Version / remarks:
- United States Environmental Protection Agency (EPA), March 1998
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Water solubility:
- 116 g/L
- Conc. based on:
- test mat.
- Incubation duration:
- 24 h
- Temp.:
- 20 °C
- pH:
- >= 9.7 - <= 10.5
- Conclusions:
- Water solubility at 20 °C: 116 g/L
- Executive summary:
A water solubility test was performed according to the OECD Guideline No. 105, EU Method A.6 and OPPTS 830.7840 under GLP compliance. In the course of this study the water solubility of sample was determined at 20 °C using the shake-flask method. Based on the measured concentrations of lithium for a shaking (equilibrium) period of up to 3 days, the water solubility of sample is 116 g/L.
Reference
Result of the determination of sample concentration
| Shaking period, day | Measured concentration of sample, (g/L) |
Measured pH | |
| Test vessel | Mean | ||
| 3 | 123 | 122 | 9.7 |
| 120 | 9.7 | ||
| 123 | 9.7 | ||
| 2 | 115 | 116 | 10.2 |
| 117 | 10.2 | ||
| 115 | 10.1 | ||
| 1 | 111 | 110 | 10.4 |
| 109 | 10.5 | ||
| 110 | 10.4 | ||
| Mean | 116 | - | - |
The measured data (slight decrease in pH and slightly increasing concentration over time indicate a slow decomposition of the sample in water. Thus, the slight increase is not related to a not yet established equilibrium (maximum water solubility). Therefore, a longer shaking period was not considered necessary and the values for the 3 measured time points were used to determine the mean water solubility.
Description of key information
A water solubility test was performed according to the OECD Guideline No. 105, EU Method A.6 and OPPTS 830.7840 under GLP compliance. In the course of this study the water solubility of sample was determined at 20 °C using the shake-flask method. Based on the measured concentrations of lithium for a shaking (equilibrium) period of up to 3 days, the water solubility of sample is 116 g/L.
Key value for chemical safety assessment
- Water solubility:
- 116 g/L
- at the temperature of:
- 20 °C
Additional information
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