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EC number: 943-893-0 | 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:
- 16 Nov - 25 Nov 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- adopted in 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- flask method
- Specific details on test material used for the study:
- Storage conditions: ambient temperature (10 to 30 °C), dry
- Key result
- Water solubility:
- 312 g/L
- Conc. based on:
- test mat. (dissolved fraction)
- Temp.:
- 20 °C
- Remarks on result:
- other: pH at 23 °C was 0.6
Reference
Results
Table 1 – Preliminary visual estimation of water solubility
Amount of test item [mg] |
Added volume of distil. water [mL] |
Total volume [mL] |
Appearance of mixture |
108.4 |
0.1 |
0.1 |
White slightly wetted solid |
0.4 |
0.5 |
White precipitate |
|
0.5 |
1.0 |
Slightly turbid |
|
1.0 |
2 |
Very slightly turbid |
|
8.0 |
10 |
The preliminary visual experiments showed that the water solubility is > 10 mg/L, it was assumed that the slightly turbid appearance was caused by impurities with a low water solubility.
Determination of water solubility– Flask Method
After equilibration, precipitate was seen in the flasks except in that
of the blank. Water solubility was calculated from measured and
unrounded concentration values and not from the rounded values given
below.
Table 2 – Water Solubility Experiments of the Test Item
Experiment |
24 h experiment |
48 h experiment |
72 h experiment |
Blank experiment (72 h) |
Test item amount [g] |
10.86 |
10.84 |
10.87 |
-- |
Demineralized water amount [mL] |
20 |
|||
Stirring time at 30 °C [h] |
24 |
48 |
72 |
72 |
pH at 23 °C |
0.6 |
5.8 |
||
Aliquot of the flasks [mL] |
0.1 |
|||
1stdilution to volume [mL] |
1 |
|||
Aliquot of the flaks [mL] |
0.01 |
|||
2nddilution to volume [mL] |
1 |
|||
Dilution factor |
1000 |
|||
Measured concentration [mg/L] |
305.6 |
320.8 |
311.4 |
-- |
Mean concentration [mg/L] |
305.1 |
320.5 |
311.0 |
-- |
Water solubility [g/L] |
305.1 |
320.5 |
311.0 |
-- |
Water solubility of the test item at 20 °C was determined to be 312 g/L (± 8 g/L).
Description of key information
312 g/L (± 8 g/L) at 20 °C (OECD 105, Flask Method)
Key value for chemical safety assessment
- Water solubility:
- 312 g/L
- at the temperature of:
- 20 °C
Additional information
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