Registration Dossier
Registration Dossier
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EC number: 253-452-8 | CAS number: 37294-49-8
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- December 18, 2013 - July 17, 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study was performed in accordance with OECD guideline 102.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 014
- Report date:
- 2014
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- (1995)
- Deviations:
- no
- Principles of method if other than guideline:
- Confirmation by thermogravimetry (TGA) and differential scanning calorimetry (DSC).
- GLP compliance:
- no
- Type of method:
- capillary method
- Remarks:
- (metal block)
Test material
- Reference substance name:
- Disodium C-isodecyl sulphonatosuccinate
- EC Number:
- 253-452-8
- EC Name:
- Disodium C-isodecyl sulphonatosuccinate
- Cas Number:
- 37294-49-8
- Molecular formula:
- C14H26O7S.2Na
- IUPAC Name:
- disodium 4-[(2-methylnonyl)oxy]-4-oxo-3-sulfonatobutanoate
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Name of test material (as cited in study report): Disodium Isodecyl Sulfosuccinate
Description: white powder
Storage conditions of test material: at room temperature in well-sealed container
The substance was tested as received.
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- >= 300 °C
- Remarks on result:
- other: No melting or boiling before decomposition.
Any other information on results incl. tables
Capillary/metal block method
The test substance turned from a white into a brown solid. The gradual color change was noted between 275 and 320°C. No liquid phase was observed.
TGA
Over 50% weight loss was measured between 275°C and 325°C. There was 70% loss of weight at 650°C. A charred residue left in the sample pan after the experiment.
DSC
The DSC curves showed peaks at 315°C with onsets at 308°C.
Applicant's summary and conclusion
- Conclusions:
- In a OECD 102 guideline study using the capillary/metal block method, decomposition of the substance started at ca. 275°C with the major decomposition at ca. 300°C. No melting before decomposition. TGA and DSC measurements confirmed the decomposition of the substance.
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