Registration Dossier
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EC number: 237-235-5 | CAS number: 13703-82-7
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016-07-29 - 2017-09-22
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to other study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 30 May 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- The Department of Health of the Government of the United Kingdom
- Type of method:
- pour point
- Key result
- Melting / freezing pt.:
- -12 °C
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: see 'Remarks'
- Remarks:
- As the test item was a complex mixture, it was considered that the pour point method was the most appropriate test procedure. It was not possible the measure the melting point of the active ingredient alone, therefore the test item as a whole had to be measured.
- Conclusions:
- The pour point of the test item has been determined to be -12 ± 3 °C (261 ± 3 K).
- Executive summary:
-12 ± 3 °C (261 ± 3 K) by pour point method, designed to be compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
Reference
Preliminary Test
The pour point of the preliminary test was -11 ± 3 °C (262 ± 3 K).
Definitive Test
The results of the main test are shown in the following table:
| Observation | Determination 1 | Determination 2 |
| Stationary point (°C) | - 15 | - 15 |
| Pour point (°C) | - 12 | - 12 |
Overall pour point result: -12 ± 3 °C (261 ± 3 K)
Discussion
As the test item was a complex mixture, it was considered that the pour point method was the most appropriate test procedure. It was not possible the measure the melting point of the active ingredient alone, therefore the test item as a whole had to be measured.
Additionally, to act as a comparison, the pour point of the mineral oil (component of the test item) was measured. This was determined to be less than -20 °C (< 253K).
Description of key information
-12 ± 3 °C (261 ± 3 K) by pour point method, designed to be compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -12 °C
Additional information
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