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EC number: 947-718-9 | 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:
- 23 Feb-03 March 2012
- 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:
- L142 A/57-66
- GLP compliance:
- no
- Type of method:
- column elution method
- Key result
- Water solubility:
- < 0.15 mg/L
- Temp.:
- 20 °C
- pH:
- >= 6.5 - <= 6.6
- Endpoint:
- water solubility
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- Justification for read across see attached in section 13.
- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- L142 A/57-66
- Type of method:
- column elution method
- Water solubility:
- < 0.15 mg/L
- Temp.:
- 20 °C
- pH:
- >= 6.5 - <= 6.6
Referenceopen allclose all
Quantitative determination of the analyte:
Flow rate (mL/h) |
Fraction No. |
Water solubility of 1,2,3-Propanetriol, homopolymer, diisooctadecanoate |
pH value |
25.0 |
1 (1-2) |
< 0.15 |
6.6 |
|
2 (3-4) |
< 0.15 |
6.6 |
|
3 (5-6) |
< 0.15 |
6.6 |
|
4 (7-8) |
< 0.15 |
6.6 |
|
5 (9-10) |
< 0.15 |
6.6 |
|
6 (11-12) |
< 0.15 |
6.6 |
|
7 (13-14) |
< 0.15 |
6.6 |
|
8 (15-16) |
< 0.15 |
6.6 |
|
|
|
|
12.5 |
1 (1-2) |
< 0.15 |
6.6 |
|
2 (3-4) |
< 0.15 |
6.6 |
|
3 (5-6) |
< 0.15 |
6.6 |
|
4 (7-8) |
< 0.15 |
6.5 |
|
5 (9-10) |
< 0.15 |
6.5 |
|
6 (11-12) |
< 0.15 |
6.6 |
|
7 (13-14) |
< 0.15 |
6.6 |
| 8 (15 -16) | < 0.15 | 6.5 |
pH value Millipore water: 6.6
Working range: The calibration curve fits over the whole working range from 0.06 to 4.10 mg/L with r² = 0.9993. A linear fit was used.
Recovery: In the course of the recovery experiment, an average recovery rate of 95% was determined.
T=20 °C
Description of key information
< 0.15 mg/L at 20 °C, pH 6.5-6.6 (read-across from similar substance)
Key value for chemical safety assessment
Additional information
The water solubility of this substance was deduced from the measurement of a similar substance: 1,2,3-Propanetriol, homopolymer, diisooctadecanoate (CAS 63705-03-3). The water solubility for this substance was determined to be <0.15 mg/L at 20 °C (column elution method analysed by GC/MSD according to EU Method A.6).
This source substance is composed mainly by mono- and di-esters of isooctadecanoic acid with glycerol, diglycerol and triglycerol. The target substance is composed by esters of isooctadecanoic acid with diglycerol and triglycerol. Both grades of the target substance are mainly composed by tri- and tetra-ester. Based on the differences in compositions, a lower water solubility can be expected for the target substance compared to the source; the water solubility of source substance (<0.15 mg/L) can therefore be considered as a “worst case” approach.
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