Registration Dossier
Registration Dossier
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EC number: 434-440-3 | CAS number: -
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:
- 17 March to 15 May 1998
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- yes
- Type of method:
- flask method
- Key result
- Water solubility:
- 497 mg/L
- Temp.:
- 20 °C
- pH:
- ca. 7.3
Reference
Results
The detector calibration was found to be linear over the range 0 to 113 mg/L of standard solutions in ethanol with a regression coefficient of 0.9997.
The following table presents a summary of the results of the water solubility test.
Measurements of water solubility at 20°C
Sample |
Time [days] |
pH |
Concentration [mg/L] |
Mean concentration [mg/L] |
|
Held at 30 °C |
Equilibrated at 20 °C |
||||
1A |
1 |
1 |
7.21 |
501 |
496 |
1B |
1 |
1 |
7.27 |
492 |
|
2A |
2 |
1 |
7.39 |
541 |
498 |
2B |
2 |
1 |
7.40 |
455 |
|
3A |
3 |
1 |
7.25 |
468 |
496 |
3B |
3 |
1 |
7.32 |
524 |
|
Water solubility* = 497 ± 33 mg/L
(C. of V. =6.6%)
* Determined as mean of all samples
No peaks were observed in the chromatograms of the blank solutions indicating that the analytical method was free from interference.
Conclusion
The water solubility of the test substance was found to be 497 ± 33 mg/L at 20 °C, pH ca. 7.3
Description of key information
Water solubility: 497 ± 33 mg/L at 20 °C, pH ca. 7.3 (EU Method A.6., shake flask method)
Key value for chemical safety assessment
- Water solubility:
- 497 mg/L
- at the temperature of:
- 20 °C
Additional information
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