Registration Dossier
Registration Dossier
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EC number: 271-685-3 | CAS number: 68604-33-1 This substance is identified by SDA Substance Name: C14-C18 and C16-C18 unsaturated alkyl carboxylic acid ammonium salt and SDA Reporting Number: 04-006-01.
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-01-16 to 2018-01-24
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Fatty acids, C14-18 and C16-18-unsatd., ammonium salts
- EC Number:
- 271-685-3
- EC Name:
- Fatty acids, C14-18 and C16-18-unsatd., ammonium salts
- Cas Number:
- 68604-33-1
- Molecular formula:
- C14H28O2.H3N / C16H32O2.H3N / C18H36O2.H3N / C18H34O2.H3N / C18H32O2.H3N / C18H30O2.H3N / C16H30O2.H3N .
- IUPAC Name:
- Fatty acids, C14-18 and C16-18-unsatd., ammonium salts
- Test material form:
- other: paste-like
- Details on test material:
- Test Substance Name: Fatty acids, C14-18 and C16-18-unsatd., ammonium salts.
Product Name/Synonym: Ammonium Oleate.
CAS number: 68604-33-1.
EG number: 271-685-3.
Batch Number: 2017-30 2022-30 04.
Purity of this sample/batch: 85.3% (contains 14.7% water).
Description: Yellow-brown paste.
Expiry date: KW30 2022 (July 2022).
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- >= -19.1 - <= 14.89 °C
- Remarks on result:
- other: Melting (Freezing) Range
Any other information on results incl. tables
Table of results (Screening Test):
| Onset temp. (°C) | Heat of melting (J.g-1) | |
| First Endotherm | -19.44 | 96.866 |
| Second Endotherm | 38.85 | 102.56 |
| Third Endotherm | 84.15 | 23.113 |
| Fourth Endotherm | 104.14 | 153.27 |
On completion of testing a tiny drop of colourless sample remained at the bottom of the pan.
The endotherm observed with an onset of -19.44 was considered to be due to melting. Therefore formal analysis was conducted between -50 to 150°C at 1 K.min-1.
Table of results:
| Run 1 | Run 2 | Run 3 | Run 4 | |
| Endotherm onset temp. (°C) | -19.10 | -18.82 | -18.66 | -18.03 |
| Mass of Sample Used (g) | 5.04 | 3.19 | 4.72 | 4.70 |
Due to the broadness and multi-peak nature of the endotherm and the multi-component nature of the sample the melting/ freezing temperature has been reported as a range.
Applicant's summary and conclusion
- Conclusions:
- Melting range of the test substance is -19.10 to 14.89°C.
- Executive summary:
Melting (Freezing) Range: -19.10 to 14.89°C.
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