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EC number: 218-039-9 | CAS number: 2040-64-4
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- Aug 09 - Oct 04, 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- no
- Type of method:
- column elution method
Test material
- Reference substance name:
- Dodecyl nonan-1-oate
- EC Number:
- 241-644-4
- EC Name:
- Dodecyl nonan-1-oate
- Cas Number:
- 17671-26-0
- Molecular formula:
- C21H42O2
- IUPAC Name:
- dodecyl nonanoate
- Test material form:
- liquid
Constituent 1
Results and discussion
Water solubility
- Water solubility:
- 2.43 µg/L
- Temp.:
- 20 °C
- pH:
- 6.3
Any other information on results incl. tables
After substraction of the blank value:
Flow rate [mL/h] |
Fraction No. |
Volume of combined fractions [mL] |
IS [µg/L] |
Solubility of test item [µg/L] |
||
|
|
|
||||
6.25 |
1 (1-2) |
20 |
99.37 |
13.20 |
||
|
2 (3-4) |
20 |
99.37 |
5.31 |
||
|
3 (5-6) |
20 |
99.37 |
3.47 |
||
|
4 (7-8) |
20 |
99.37 |
2.13 |
||
|
5 (9-10) |
20 |
99.37 |
2.49 |
||
|
6 (11-12) |
20 |
99.37 |
1.82 |
||
|
7 (13-14) |
20 |
99.37 |
2.62 |
||
|
8 (15-16) |
20 |
99.37 |
2.14 |
||
|
|
|
|
|
|
|
3.125 |
1 (1-2) |
20 |
99.37 |
2.17 |
||
|
2 (3-4) |
20 |
99.37 |
4.27 |
||
|
3 (5-6) |
20 |
99.37 |
4.10 |
||
|
4 (7-8) |
20 |
99.37 |
2.39 |
||
|
5 (9-10) |
20 |
99.37 |
1.56 |
||
|
6 (11-12) |
20 |
99.37 |
3.10 |
||
|
7 (13-14) |
20 |
99.37 |
2.65 |
||
|
8 (15-16) |
20 |
99.37 |
3.36 |
||
* below the lowest calibration level (0.467 µg/L)
The water solubility at flow rates of 3.125 mL/h yielded values from 1.56 to 0.427 µg/L and flow rate 6.25 mL/h the values range from 1.82 µg/L to 13.2 µg/L. In contradiction to the OECD Guideline 105 the concentrations differ by more than 30 %. This is, however, due to the low solubility of the test item. Therefore, a larger difference is also considerewd acceptable.
Calculation of water solubility was done by means of five successive fraction due to the first at each flow rate.
Flow rate [mL/h] |
Fraction No. |
Test item |
Mean value [µg/L] |
6.25 |
4 (7-8) |
2.13 |
2.24 |
5 (9-10) |
2.49 |
||
6 (11-12) |
1.82 |
||
7 (13-14) |
2.62 |
||
8 (15-16) |
2.14 |
||
3.125 |
4 (7-8) |
2.39 |
2.61 |
5 (9-10) |
1.56 |
||
6 (11-12) |
3.1 |
||
7 (13-14) |
2.65 |
||
8 (15-16) |
3.36 |
The WS was determined at 20 °C. The pH value of the collected aqueous fractions was 6.3.
Applicant's summary and conclusion
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