Registration Dossier
Registration Dossier
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EC number: 202-957-1 | CAS number: 101-59-7
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:
- supporting study
- Study period:
- 2017
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Principles of method if other than guideline:
- The melting range was determined according to “Capillary tube in a metal block - Apparatus with photocell detection” in OECD 102 - “Melting Point / Melting Range”. A capillary tube loaded the sample, is placed in a heated metal block. The temperature rise is adjusted at a suitable pre-selected linear rate. A beam of light is directed through the sample to a photocell. On melting of the sample, the intensity of the light reaching the photocell increases and a stop signal is sent to the digital indicator reading out the temperature of the heating chamber.
- GLP compliance:
- no
- Type of method:
- capillary method
- Melting / freezing pt.:
- >= 142.2 - <= 143.7 °C
- Atm. press.:
- ca. 101.325 kPa
- Conclusions:
- Based on the test results, the melting range could be confirmed: 142.2°C~143.7°C
Reference
The approximate melting point of the sample was determined to be about 145.0 °C, so the start temperature was set to be below 135.0 °C (135.0 °C actually).
Results of the melting range are shown below:
No. beginning temperatures final temperatures [ °C]
1 142.4 142.3
2 143.6 143.8
Mean 142.4 143.7
Description of key information
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 142.2 °C
Additional information
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