Registration Dossier
Registration Dossier
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EC number: 680-227-5 | CAS number: 71449-78-0
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:
- 03 December 2018 to 10 June 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.:
- 122 °C
- Conclusions:
- The melting point of the test item has been determined to be 122 ± 1 °C (395 ± 1 K).
- Executive summary:
The test item was determined to have a melting point of 122 ± 1 °C (395 ± 1 K) by differential scanning calorimetry, 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
The thermographic data for Determinations 1 and 2 are shown in the following table:
Table 2 Thermographic Data
Thermal Event |
Interpretation |
Temperature (°C) |
|
Determination 1 |
Determination 2 |
||
Endotherm |
Onset of melting |
119.07 |
119.07 |
Extrapolated onset of melting |
122.02 |
122.11 |
|
Peak melting |
123.69 |
124.08 |
|
Mean melting temperature: 122 ± 1 °C (395 ± 1 K)
Description of key information
122 ± 1 °C; OECD 102; Fox J M (2019)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 122 °C
Additional information
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