Registration Dossier
Registration Dossier
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EC number: 928-806-6 | 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:
- 05 -06 May 2003
- 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
- Remarks:
- The testing facility indicated that the protocol was followed without deviation.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Remarks:
- The testing facility indicated that the protocol was followed without deviation.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
- Remarks:
- and DSC as preliminary test
- Specific details on test material used for the study:
- - Batch n°: 00403487
- Analytical purity: > 98%
- Expiration date: 31 December 2003
- Storage condition: at room temperature - Key result
- Melting / freezing pt.:
- 278.1 °C
- Remarks on result:
- other: 278.1 deg C (+/- 3 deg C). 551.3 K (+/- 0.3K). The results are mean of two tests measured in triplicates; heating rate 3 k/min; capilary method.
- Melting / freezing pt.:
- 278.8 °C
- Remarks on result:
- other: DCS method (Pre test): heating rate 20 K/min
- Conclusions:
- In conclusion, the melting point of T002615 is determined to be 278.1 deg C (+/- 3deg C) (capilary test) and 278.8 deg C (DSC).
Reference
Results
DSC-method (Preliminary test)
An endothermic heat effect, the melting, was observed at 278.8 deg C.After the experiment, the sample had lost about 6 % of its mass and the color of the sample was changed to brown.
Capilary method (Main test)
In order to determine the melting point more precisely, further tests were performed using the capillary tester. A total of 6 samples were heated with a heating rate of 3 K/min from 240 deg C to 265 deg C and with a heating rate of 0.5 K/min from 265 deg C to 320 deg C. All samples were completely melted between 277.7 deg C and 278.4 deg C. After the measurement the samples were clear and coloured brown. The melting point of T002615 is determined to be 278.1 deg C. (+/- 3 deg C).
Description of key information
In a GLP study according to OECD guideline 102 and EU method A.1 (Klimisch 1, Tognucci, 2003) the melting point of T002615 was determined to be 278.1°C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 278.1 °C
Additional information
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