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EC number: 211-536-1 | CAS number: 659-70-1
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:
- 2014-11-10 to 2014-11-14
- 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:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Key result
- Water solubility:
- 48.1 mg/L
- Temp.:
- 20 °C
- pH:
- 6.5
- Details on results:
- Preliminary Test: The determined solubility was in the range of 49.7 mg/L. For the application dose for the definitive study, 500 mg/L, as approx. the tenfold of the solubility result, was used.
- Conclusions:
- The water solubility of the test item was determined to be 48.1 mg/L (pH 6.5) at 20 ± 0.5 °C.
- Executive summary:
The test item has a water solubility of 48.1 mg/L (pH 6.5) at 20 +- 0.5°C as determined by flask method according to Regulation EC No. 440/2008 Method A.6., OECD Test Guideline 105 (1995).
Reference
Water Solubility Results at 20 °C for the test item
Preincubation time |
Replicate No. |
test item [mg/L] |
|
Concentration |
Mean |
||
24 h
|
1 |
48.4 |
47.5
|
2 |
46.6 |
||
48 h
|
1 |
50.7 |
49.3
|
2 |
47.9 |
||
72 h
|
1 |
47.2 |
47.7
|
2 |
48.1 |
||
Mean (24-72h) |
|
|
48.1 |
Deviation [%](24-72h) |
|
|
3.87 |
Check of temperature:
Intended temperature [°C] |
Measured temperature [°C] |
||
|
Min |
max |
Mean value ± SD |
30.0 ± 0.5 |
29.97 |
30.07 |
30.01 ± 0.02 |
20.0 ± 0.5 |
19.91 |
20.11 |
19.99 ± 0.05 |
No tyndall effect was detected during the incubation time.
Validity criteria were fulfilled: The concentration measured did not differ more than 15%, temperatures were kept constant within±0.5°C.
pH-value of the Test Mixture
Test temperature [°C] |
Preincubation time [h] |
Replicate |
Measured pH |
Mean value |
20 |
24 |
1 |
6.774 |
6.5 |
2 |
6.477 |
|||
48 |
1 |
6.416 |
||
2 |
6.223 |
|||
72 |
1 |
6.707 |
||
2 |
6.541 |
Description of key information
Water solubility: 48.1 mg/L at 20°C; by flask method
by flask method
Key value for chemical safety assessment
- Water solubility:
- 48.1 mg/L
- at the temperature of:
- 20 °C
Additional information
The test item has a water solubility of 48.1 mg/L (pH 6.5) at 20 +- 0.5°C as determined by flask method according to Regulation EC No. 440/2008 Method A.6., OECD Test Guideline 105 (1995).
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