Registration Dossier
Registration Dossier
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EC number: 224-748-4 | CAS number: 4474-24-2
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:
- December 19, 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- no
- Type of method:
- flask method
- Water solubility:
- ca. 10 950 mg/L
- Temp.:
- 20 °C
- pH:
- ca. 7.44
- Remarks on result:
- other: Standard deviation ± 0.47, Average solubility 24, 48 and 96 hours
- Conclusions:
- 10950 mg/l at 20 °C and pH 7.44
- Executive summary:
Method
The Water solubility was performed following the recommendations of the OECD guideline 105.
Result
Average solubility: 10950 mg/l at 20 °C and pH 7.44
Standard deviation: 0.47
Reference
Reference solutions were measured in the spectrophotometer in quantitative mode, thus generating a calibration curve. Calibration curve was smooth and linear at every concentration. Considering that preliminary test resulted in an absorbance keeping the same shape like the references, its value was considered for the 24 hours’ measurement. Adjusting concentrations in proportion to the real weights the following results were obtained:
| Test 1 (24 hs) | 11.49 | g/l |
| Test 2 (48 hs) | 10.20 | g/l |
| Test 3 (96 hs) | 11.17 | g/l |
| Average solubility | 10.95 | g/l |
| Standard deviation | 0.47 | |
| pH mother solution | 5.78 | |
| pH satured solution | 7.44 |
Description of key information
10950 mg/l at 20 °C and pH 7.44
Key value for chemical safety assessment
- Water solubility:
- 10 950 mg/L
- at the temperature of:
- 20 °C
Additional information
Flask method - OECD guideline 105
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