Registration Dossier
Registration Dossier
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EC number: 288-511-7 | CAS number: 85736-99-8 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 53228.
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:
- October 28, 2011 - November 01, 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Key result
- Melting / freezing pt.:
- >= -20 - <= 20 °C
- Atm. press.:
- 1 013.3 hPa
- Conclusions:
- The melting range of the test item was determined to be -20 °C to +20 °C at 1013.25 hPa. At higher temperatures the test item is a highly viscous substance.
- Executive summary:
The determination of the melting point was carried out by differential scanning calorimetry (DSC) according to OECD test guideline 102 and Regulation (EC) No 440/2008 method A.1. The test item was heated up from ambient temperature and -50 °C, respectively, to the final temperature (200 °C) at a constant heating rate (10 K/min) in a defined atmosphere (nitrogen). The quantity of heat absorbed or released was measured and recorded. Aluminium crucibles with a small hole were used as containers for the test item and as empty reference crucible. About 18 mg to 30 mg of the test item were used. Two measurements in an aluminium crucible with a hole showed an endothermic effect (melting) in the temperature range -20 °C to +20 °C with an onset temperature of -6.0 °C. The onset temperature is derived from the intersection of the tangent line with the highest slope of the endothermic peak with the baseline.
Therefore the melting range of the test item was determined to be -20 °C to +20 °C at 1013.25 hPa. At higher temperatures the test item is a highly viscous substance.
Reference
Melting Point / Melting Range (DSC):
Two measurements in an aluminium crucible with a hole showed an endothermic effect (melting) in the temperature range -20 °C to +20 °C with an onset temperature of -6.0 °C. The onset temperature is derived from the intersection of the tangent line with the highest slope of the endothermic peak with the baseline.
Ident-No. |
Onset / °C |
Temperature range / °C |
Crucible |
32288 |
-6.02 |
(-20) – (+20) |
Aluminium crucible with a hole |
32290 |
-5.93 |
(-20) – (+20) |
Aluminium crucible with a hole |
The test item had a melting point range of -20 °C to +20 °C.
Description of key information
The melting range of the test item was determined to be -20 °C to +20 °C at 1013.25 hPa. At higher temperatures the test item is a highly viscous substance.
Key value for chemical safety assessment
Additional information
The determination of the melting point was carried out by differential scanning calorimetry (DSC) according to OECD test guideline 102 and Regulation (EC) No 440/2008 method A.1. The test item was heated up from ambient temperature and -50 °C, respectively, to the final temperature (200 °C) at a constant heating rate (10 K/min) in a defined atmosphere (nitrogen). The quantity of heat absorbed or released was measured and recorded. Aluminium crucibles with a small hole were used as containers for the test item and as empty reference crucible. About 18 mg to 30 mg of the test item were used. Two measurements in an aluminium crucible with a hole showed an endothermic effect (melting) in the temperature range -20 °C to +20 °C with an onset temperature of -6.0 °C. The onset temperature is derived from the intersection of the tangent line with the highest slope of the endothermic peak with the baseline.
Therefore the melting range of the test item was determined to be -20 °C to +20 °C at 1013.25 hPa. At higher temperatures the test item is a highly viscous substance.
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