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EC number: 953-265-8 | 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:
- From 16-03-2021 to 16-03-2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- >= 150 - <= 160 °C
- Remarks on result:
- other: The test item decomposes below melting point and the decomposition process starts at about 150 °C. (Methods: EC A.1/OECD No. 102)
- Conclusions:
- The test item decomposes at 150.0°C
- Executive summary:
A study to determine the melting point of the test item was performed according to EU method A.1 (capillary method) / OECD 102, under GLP conditions. A preliminary test was carried out in order to determine the melting temperature range for test item. Based on the results of the preliminary test, a main test consisting of three series of measurements in the range of 130.0 °C – 400.0°C was performed.
All samples started to change colour at 150.0ºC. At 175°C the level of samples started to raise and at about 200°C the tint of samples was dark brown. Therefore, the test item decomposes below the melting point under atmospheric pressure. Under test conditions, the test item decomposes at 150.0 °C.
Reference
Preliminary test:
The study was carried out in order to determine the melting temperature range for the test item (in the range of 25.0 – 400.0°C). At about 150°C, when heated at 10.0˚C per minute, yellowing of the sample at the edges of the capillary was observed. At about 175°C the sample changed color to brown.
Main test
The three series of melting point measurements were performed in the temperature range 130.0 - 400.0°C. The heating rate was 1.0ºC/min. Samples number 1, 2 and 3 started to change the tint to brown at the edges of capillaries in the range of 150-160ºC. At 175°C the level of samples started to raise. At about 200°C the tint of samples was dark brown.
Description of key information
Key study. Method according to EU method A.1 (capillary method) / OECD 102, GLP study. Under test conditions, the test item decomposes below its melting point at 150.0°C.
Key value for chemical safety assessment
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