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EC number: 210-502-3 | CAS number: 617-04-9
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:
- from 2021-01-12 to 2021-01-25
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- 1995
- Deviations:
- yes
- Remarks:
- Due to the fact that the test item showed no evaluable UV activity, a quantitative determination of the water solubility via HPLC with UV detection was not possible. Thus, only the preliminary tests are used for the estimation of the water solubility.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- 2008
- Deviations:
- yes
- Remarks:
- Due to the fact that the test item showed no evaluable UV activity, a quantitative determination of the water solubility via HPLC with UV detection was not possible. Thus, only the preliminary tests are used for the estimation of the water solubility.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: simplified flask method
- Key result
- Water solubility:
- >= 324.3 - <= 329.3 g/L
- Conc. based on:
- test mat. (total fraction)
- Loading of aqueous phase:
- 329.3 g/L
- Incubation duration:
- 143 h
- Temp.:
- 21 °C
- pH:
- ca. 6.5
- Conclusions:
- The water solubility of the test item was estimated to be between 324.3 g/L and 329.3 g/L.
- Executive summary:
The water solubility of the test item was determined in an experimental study under GLP conditions according to OECD Test Guideline 105 and EU Method A.6. Due to the fact that the test item showed no evaluable UV activity, a quantitative determination of the water solubility via HPLC with UV detection was not possible. Thus, only the preliminary tests are used for the estimation of the water solubility (simplified flask method). The water solubility was estimated by stepwise addition of test item to 100 mL water. The water solubility of the test item was estimated to be between 324.3 g/L and 329.3 g/L.
Reference
First preliminary test for the estimation of the water solubility:
Total amount of test item [g] | Volume water [mL] | Ultrasonic bath [min]
| Remark
|
105.08 | 0.1 | -- | Not dissolved |
105.08 | 0.6 | 2 | dissolved |
Extended preliminary test for the estimation of the water solubility:
Total amount of test item [g] | Volume water [mL] | Stirring time [h]
| Remark
|
17.53 | 100 | -- | dissolved |
21.54 | 100 | -- | dissolved |
25.84 | 100 | -- | dissolved |
30.95 | 100 | -- | dissolved |
36.17 | 100 | 120 | Not dissolved |
30.92 | 100 | -- | dissolved |
31.42 | 100 | -- | dissolved |
31.93 | 100 | -- | dissolved |
32.43 | 100 | -- | dissolved |
32.93 | 100 | 143 | Not dissolved |
Description of key information
The water solubility of the test item was estimated to be between 324.3 g/L and 329.3 g/L (reference 4.8-1).
Key value for chemical safety assessment
Additional information
The water solubility of the test item was determined in an experimental study under GLP conditions according to OECD Test Guideline 105 and EU Method A.6. Due to the fact that the test item showed no evaluable UV activity, a quantitative determination of the water solubility via HPLC with UV detection was not possible. Thus, only the preliminary tests are used for the estimation of the water solubility (simplified flask method). The water solubility was estimated by stepwise addition of test item to 100 mL water. The water solubility of the test item was estimated to be between 324.3 g/L and 329.3 g/L.
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