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EC number: 292-222-1 | CAS number: 90583-23-6
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:
- 16 Dec 2014 - 12 Feb 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Remarks:
- DSC
- Key result
- Melting / freezing pt.:
- > 169 °C
- Atm. press.:
- ca. 1 013 hPa
- Decomposition:
- yes
- Decomp. temp.:
- 169 °C
Reference
The test item shows no melting of the main component up to 169 °C according to the definition in the OECD Guideline 102 (mean value from repeat determinations, 1st to 3rd heating run.
170 °C (from first measurement)
167 °C (from second measurement)
170 °C (from third measurement)
From 169 °C the test item shows most probably a thermal decomposition presumably with melting of decomposition components (melting > 169 °C cannot be excluded).
In the temperature area between about 110 °C and 120 °C the test item shows a reversible endothermic effect. This effects possibly is melting of subcomponents and/or solid-solid phase transformations. These effects do not belong to the melting of the test item (main component) which was verified by a subsequent test by using the Kofler heating bank (no morphological change of the test item is visible).
The cooling runs show no cristallization.
Description of key information
> 169 °C
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 169 °C
Additional information
The melting behaviour of the substance was determined by Differential Scanning Calorimetry according to OECD Guideline 102.
The test item shows no melting of the main component up to 169 °C. From 169 °C the test item shows most probably a thermal decomposition presumably with melting of the decomposition components. In the temperature area between about 110 °C and 120 °C the test item shows a reversible endothermic effect. This effects possibly is melting of subcomponents and/or solid-solid phase transformations.
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