Registration Dossier
Registration Dossier
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EC number: 237-224-5 | CAS number: 13701-64-9
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:
- 29 October 2019 to 19 November 2019
- 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:
- differential scanning calorimetry
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: E00616-912
- Expiration date of the lot/batch: 18 September 2019
- Purity: 82 % - Key result
- Decomp. temp.:
- 75 °C
- Remarks on result:
- not determinable
- Conclusions:
- As a result of the initial low rate of enthalpy change during decomposition, the onset temperature could only be approximated. Similar thermographic profiles were obtained using air and nitrogen atmospheres. This indicated that the decomposition was probably thermal and not oxidative. Based on the structure, the mass losses and wide endothermic events during heating were considered to be due to internal dehydration reactions within the polymeric chains.
The test item was determined to decompose from approximately 75 °C (348 K). As the test item decomposed, no value for melting point could be determined. - Executive summary:
The test item decomposed from approximately 75 °C (348 K), by differential scanning calorimetry, designed to be compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. As the test item decomposed, no value for melting point could be determined.
Reference
Description of key information
The test item decomposed from approximately 75 °C (348 K), by differential scanning calorimetry, designed to be compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. As the test item decomposed, no value for melting point could be determined.
Key value for chemical safety assessment
Additional information
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