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EC number: 309-363-2 | CAS number: 100231-63-8
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:
- 28 Jun 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- no
- Type of method:
- capillary method
- Remarks:
- melting point device with metal block
- Melting / freezing pt.:
- 129.9 °C
- Atm. press.:
- ca. 1 013 hPa
Reference
Detailed results:
Replicate |
Start temperature [°C] |
Rate[°C/min] |
End temperature [°C] |
Melting point [°C] |
1 |
60 |
5 |
200 |
131.7 |
2 |
60 |
5 |
200 |
130.1 |
3 |
100 |
5 |
160 |
129.7 |
Mean of replicates 2 and 3 |
129.9 |
|||
The test item was tested several times over a temperature range of 60 to 200 °C. It was very viscous which made it harder to determine precisely the melting point. The sample also proved difficult to transfer into the capillary tube due to its viscosity. The melting point of this substance was determined when a bubble was observed and the glass capillary bell was pushed up. No colour change was observed.
The first temperature taken was used as a preliminary scan. The last two temperatures were used for the final test, showing a mean of 129.9 ºC.
Description of key information
129.9 °C at ca. 1013 hPa (OECD 102, EU A.1)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 129.9 °C
Additional information
For the melting point determination, the capillary method was used (melting point device with metal block).
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