Registration Dossier
Registration Dossier
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EC number: 213-867-7 | CAS number: 1041-01-6
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- 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 105 (Water Solubility)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- GLP compliance:
- no
- Type of method:
- flask method
- Key result
- Water solubility:
- 20.15 mg/L
- Conc. based on:
- test mat.
- Loading of aqueous phase:
- 100 mg/L
- Temp.:
- 20 °C
- pH:
- 7
- Remarks on result:
- other: The measurement was conducted in demineralized water. Thus a pH value of 7 can be assumed.
- Details on results:
- Three flasks 1A - C with the same loading rate (100 mg/L) were sampled during equilibra-tion. Seven vessels (flasks blank, 1C (for the sampling point 72 h), Blanc and 2 – 6) were set onto the shaking apparatus immediately. After 24 ± 2 hours, flask 1B (for the sampling point 48 h) and after 48 ± 2 hours, flask 1A (for the sampling point 24 h) were set on the shaker and all flasks were shaken for further 24 ± 2 hours at room temperature. Then, flasks 1A, 1B and 2 were taken from the shaker and tempered to 20.0 ± 0.5 °C. Samples were taken after homogenising and centrifuged. The clear samples were analysed after sample preparation via HPLC. Flask 1C was not tightly closed and could not be used. Therefore, bottle 2 was measured instead during the equilibration phase.
No differences above 15 % and no rising tendency in the test item concentration of the solutions were found on day 3. Therefore, the flasks 3 - 6 were sampled on the following day (day 4).
No Tyndall effect (i.e. a laser beam was not scattered when transmitted through the liquid) could be observed indicating that no colloidal dispersed particles are present. - Conclusions:
- A test item concentration of 20.147 ± 0.848 mg/L (mean ± standard deviation) was calcu-lated, giving a relative standard deviation of 4.2 %.
Reference
Description of key information
In a study according to OECD 105 a test item concentration of 20.147 ± 0.848 mg/L (mean ± standard deviation) was calculated, giving a relative standard deviation of 4.2 %.
Key value for chemical safety assessment
- Water solubility:
- 20.147 mg/L
- at the temperature of:
- 20 °C
Additional information
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