Registration Dossier
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EC number: 949-740-4 | CAS number: -
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:
- 19 December 2018 to 21 February 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Date of Inspection: 21 August 2018 Date of Issue: 19 November 2018
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- >= 28 - <= 35 °C
- Conclusions:
- The melting point of the test item has been determined to be over the range 28 to 35 °C (301 to 308 K).
- Executive summary:
The melting range was determined to be 28 to 35 °C (301 to 308 K), by differential scanning calorimetry in accordance 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
The thermographic data for Determinations 1 to 3 are shown in the following table. The thermograms are attached as an Illustration.
Table 1
Thermal Event |
Interpretation |
Temperature (°C) |
||
Det 1 |
Det 2 |
Det 3 |
||
Endotherm |
Onset of melting |
28.85 |
29.38 |
28.03 |
Extrapolated onset of melting |
29.42 |
29.67 |
28.97 |
|
Endset of melting |
34.73 |
34.66 |
34.34 |
|
A third determination was performed which confirmed that the initial endotherm in Determination 2 was erroneous.
Description of key information
28 to 35 °C; OECD 102; Fox, J. M. (2019)
Key value for chemical safety assessment
Additional information
No key value for chemical safety assessment is reported as no single value was identified for melting point and instead a melting range was determined.
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