Registration Dossier
Registration Dossier
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EC number: 470-780-9 | CAS number: 55312-97-5
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:
- 12 Sep 2006 - 15 Jan 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- -7 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The test item has a melting point at atmospheric conditions (1013 hPa) of -7 °C.
- Executive summary:
Two DSC-runs in aluminium crucibles with a hole showed an endothermic effect in the temperature range of -20 to 15°C with an onset temperature of about -7 °C. Additionally an exothermal effect is seen in the temperate range -60 to -40 °C with an onset temperature of about -53 °C. The onset temperature is derived from the intersection of the tangent line with the highest slope of the endothermic peak with the baseline.
Reference
Two DSC-runs in aluminium crucibles with a hole showed an endothermic effect in the temperature range of -20 to 15°C with an onset temperature of about -7 °C. Additionally an exothermal effect is seen in the temperate range -60 to -40 °C with an onset temperature of about -53 °C. The onset temperature is derived from the intersection of the tangent line with the highest slope of the endothermic peak with the baseline.
Validity criteria for the measurement of the melting point:
| Target condition according to guideline: | Actual condition according to the study: | Validity criteria met: |
| The mean of at least two measurements which are in the range of the estimated accuracy is reported as the melting temperature. | The value is the mean of two runs. The values differed in 0.1 °C and lie within the accuracy specified in OECD TG 102 for differential thermal analysis (+/- 0.5 K). | Yes |
Description of key information
The test item has a melting point at atmospheric conditions (1013 hPa) of - 7 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -7 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
