Registration Dossier
Registration Dossier
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EC number: 270-299-2 | CAS number: 68424-38-4 This substance is identified by SDA Substance Name: C16-C18 alkyl carboxylic acid sodium salt and SDA Reporting Number: 19-006-04.
Stability in organic solvents and identity of relevant degradation products
Administrative data
- Endpoint:
- stability in organic solvents and identity of relevant degradation products
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: chemical properties
Test material
- Reference substance name:
- Fatty acids C16-18, sodium salt
- IUPAC Name:
- Fatty acids C16-18, sodium salt
- Reference substance name:
- Fatty acids, C16-18, sodium salts
- EC Number:
- 270-299-2
- EC Name:
- Fatty acids, C16-18, sodium salts
- Cas Number:
- 68424-38-4
- Molecular formula:
- Unspecified
- IUPAC Name:
- Fatty acids, C16-18, sodium salts
Constituent 1
Constituent 2
Results and discussion
- Test substance stable:
- yes
- Transformation products:
- not measured
Any other information on results incl. tables
Due to the chemical structure of fatty acid C16 -18 sodium salt (ionic structure), the test item can be considered to be practicability insoluble in organic solvents. Thus, stability in organic solvents cannot be determinded.
Moreover, the behaviour of fatty acid C16 -18 sodium salt in aqueous solution was investigated in the course of the study 10 -15551-2 "Hydrolysis as a function of pH according to OECD guideline for the testing of chemicals 111".
It was shown that the predominant reaction of fatty acid C16 -18 sodium salt in the presence of protonic solvents (water, but also applicable to organic solvents like methanol or ethanol) is the protonation of the carboxylic moiety to form the free fatty acids. No further reaction of the free acids was observed, although being extracted with diethyl ether, then evaporated and resolved in acetonitril (see study report 10 -15551 -2).
Fatty acid C16 -18 sodium salt and free C16 -18 fatty acids are considered to be stable in organic solvents due their chemical properties.
Applicant's summary and conclusion
- Conclusions:
- Due to the chemical structure of fatty acid C16 -18 sodium salt (ionic structure), the test item can be considered to be practicability insoluble in organic solvents. Thus, stability in organic solvents cannot be determinded.
Moreover, the behaviour of fatty acid C16 -18 sodium salt in aqueous solution was investigated in the course of the study 10 -15551-2 "Hydrolysis as a function of pH according to OECD guideline for the testing of chemicals 111".
It was shown that the predominant reaction of fatty acid C16 -18 sodium salt in the presence of protonic solvents (water, but also applicable to organic solvents like methanol or ethanol) is the protonation of the carboxylic moiety to form the free fatty acids. No further reaction of the free acids was observed, although being extracted with diethyl ether, then evaporated and resolved in acetonitril (see study report 10 -15551 -2).
Fatty acid C16 -18 sodium salt and free C16 -18 fatty acids are considered to be stable in organic solvents due their chemical properties.
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