Registration Dossier
Registration Dossier
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EC number: 270-279-3 | CAS number: 68424-19-1 This substance is identified by SDA Substance Name: C16-C18 and C18 unsaturated alkyl carboxylic acid triethanol amine salt and SDA Reporting Number: 11-006-14.
Solubility in organic solvents / fat solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- solubility in organic solvents / fat solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to internationally accepted test guidelines and is considered relevant, adequate and reliable.
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: OECD 105
- Deviations:
- yes
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: EU test method L383 A/54-62 (EU A.6)
- Deviations:
- yes
- Principles of method if other than guideline:
- As solvent n-octanol is used instaed of water.
- GLP compliance:
- no
- Medium:
- n-octanol
- Solubility:
- > 730 g/L
- Temp.:
- 23 °C
- Test substance stable:
- yes
- Details on results:
- - pH value could not be determined as the test item was solved in n-Octanol. pH value is only defined for aqueous solutions.
- Test temperature: 23 °C - Conclusions:
- The octanol solubililty > 730 g/L
- Executive summary:
The octanol solubility was measured using the flask method according to OECD guideline 105 for measuring water solubility.
The octanol solubility > 730 g/L.
Reference
In a solubility test, the following aliquots of Fatty acids, C16-18 and C18-unsatd., compds. with triethanolamine were added to 5 mL n-Octanol and stirred slowly for ten minutes:
Step |
Weighed sample (g) |
Visual examination |
A |
0.1016 |
clear solution |
B |
0.5053 |
clear solution |
C |
2.5026 |
clear solution |
D |
10.0159 |
clear solution |
E |
19.2073 |
clear solution |
∑ |
32.3327 |
|
While being added to n-Octanol, solutions with increasing viscosity were being formed.
With 32,3 g of test item being mixed into 4.15 g of n-Octanol, a viscous solution with a total weight of approximately 36.45 g has been formed. This is equivalent to 88.5 % (w/w) of test item in solution.
Thus the following results can be reported: n-Octanol Solubility > 885 g/kg. With a density of 0.83 g/L of the applied n-Octanol the value for the n-Octanol Solubiltiy is calculated to be > 730 g/L.
Description of key information
The octanol solubility > 730 g/L.
Key value for chemical safety assessment
- Solubility in organic solvents at 20°C:
- 730 g/L
Additional information
The octanol solubility was measured using the flask method according to OECD guideline 105 for measuring water solubility.
The octanol solubility > 730 g/L.
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