Registration Dossier
Registration Dossier
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EC number: 815-706-1 | CAS number: 20767-00-4
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:
- 1 854 mg/L
- Conc. based on:
- test mat.
- Loading of aqueous phase:
- 10 g/L
- Incubation duration:
- >= 48 - <= 72 h
- 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 (10 g/L) were sampled during equilibration. Seven vessels (flasks blank, 1C (for the sampling point 72 h) 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 - 1C were taken from the shaker and tempered to (20.0 ± 0.5 °C). Samples were taken after homogenisation, membrane filtered and analysed with the HPLC. A rising tendency in the test item concentration of the solutions was found on day 3. Therefore, the flask C was sampled on the subsequent days (day 6 and 7) until no differences above 15 % and no rising tendency in the test item concentration of the solutions were observed.
- Conclusions:
- The mean test item concentration of the samples (flask 3- 6), which were used for the calculation of water solubility (at plateau) was 1854 mg/L ± 10 mg/L, corresponding to a relative standard deviation of 0.5 %.
Reference
Description of key information
In a study according to OECD 105 a test item concentration of 1854 mg/L ± 10 mg/L (mean ± standard deviation) was calculated, giving a relative standard deviation of 0.5 %.
Key value for chemical safety assessment
- Water solubility:
- 1 854 mg/L
- at the temperature of:
- 20 °C
Additional information
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