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EC number: 248-688-3 | CAS number: 27841-06-1
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:
- 30 Jan - 20 Feb 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- no
- Type of method:
- column elution method
- Key result
- Water solubility:
- < 2.4 µg/L
- Conc. based on:
- test mat.
- Temp.:
- 20 °C
- pH:
- 6.3
Reference
Working range
The calibration curve fits over a range from 2.4 µg/L to 120 µg/L with r² = 1.000. A quadratic fit was used.
Recovery
In the course of the recovery experiment, an average recovery rate of 92.6% was determined.
Study results
The concentrations of the test item in the different test solutions were calculated automatically using the equation of the calibration curve. The results for the duplicate analyses are listed in the following table:
Flow rate [mL/h] |
Fraction No. |
Volume of combined fractions [mL] |
Test Item [μg/L] |
25.0 |
1 (1-2) |
20 |
< 2.4 |
|
2 (3-4) |
20 |
< 2.4 |
|
3 (5-6) |
20 |
< 2.4 |
|
4 (7-8) |
20 |
< 2.4 |
|
5 (9-10) |
20 |
< 2.4 |
|
6 (11-12) |
20 |
< 2.4 |
|
7 (13-14) |
20 |
< 2.4 |
|
8 (15-16) |
20 |
< 2.4 |
|
|
|
|
12.5 |
1 (1-2) |
20 |
< 2.4 |
|
2 (3-4) |
20 |
< 2.4 |
|
3 (5-6) |
20 |
< 2.4 |
|
4 (7-8) |
20 |
< 2.4 |
|
5 (9-10) |
20 |
< 2.4 |
|
6 (11-12) |
20 |
< 2.4 |
|
7 (13-14) |
20 |
< 2.4 |
|
8 (15-16) |
20 |
< 2.4 |
The water solubility at both flow rates (25.0 mL/h and 12.5 mL/h) yielded values below the lowest calibration level (2.4 μg/L). The following value for water solubility of the test item can thus be reported according to test procedure OECD Guideline 105 as:
The water solubility of the test item was determined as < 2.4 μg/L
The water solubility was determined at 20 °C.
The pH value of the collected aqueous fractions was 6.3.
The pH value of HPLC water was 6.3.
Description of key information
< 2.4 µg/L at 20 °C, pH 6.3
Key value for chemical safety assessment
Additional information
The water solubility of the substance 2,2-dimethyl-1,3-propanediyl didecanoate (CAS 27841-06-1) was determined according to OECD 105 (column elution method).
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