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EC number: 269-495-0 | CAS number: 68258-72-0
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:
- 09-Feb-2016 to 19-Mar-2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- no
- Type of method:
- column elution method
- Water solubility:
- 3.5 µg/L
- Temp.:
- 20 °C
- pH:
- 6.3
Reference
Results
Working range
The calibration curve fits over a range from 1.529 (microg/L and 61.14 microg/L with r2 = 1.000). A linear fit was used.
Recovery
In the course of the recovery experiment, the recovery rate of the spiked sample with 3.06 microg/L yielded 188% due to the low concentration. With 15.29 microg/L a recovery rate of 113% was determined.
Calculation of the water solubility was done by means of five successive fractions:
Flow rate (mL/h) |
Fraction No. |
Test substance [µg/L] |
Mean Value [µg/L] |
12.5 |
1 (1-2) |
3.74 |
3.88 |
2 (3-4) |
3.89 |
||
3 (5-6) |
2.94 |
||
4 (7-8) |
3.71 |
||
5 (9-10) |
5.10 |
||
6.25 |
3 (5-6) |
3.97 |
3.21 |
4 (7-8) |
4.54 |
||
5 (9-10) |
2.39 |
||
6 (11-12) |
2.42 |
||
7 (13-14) |
2.74 |
For the test item, a water solubility of 3.5 µg/L, at 20 °C and pH 6, has been determined using the guidelines OECD 105.
Description of key information
3.5 µg/L at 20 °C, pH = 6.3 (OECD 105)
Key value for chemical safety assessment
- Water solubility:
- 3.5 µg/L
- at the temperature of:
- 20 °C
Additional information
The water solubility of the test substance 2,2-bis(hydroxymethyl)propane-1,3-diyl didocosanoate (CAS: 68258-72-0) was determined according to OECD Guideline 105.
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