Registration Dossier
Registration Dossier
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EC number: 231-272-0 | CAS number: 7473-98-5
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:
- 2009-2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- thermal analysis
- Remarks:
- Differential Scanning Calorimetry
- Melting / freezing pt.:
- -60 °C
- Subl. temp.:
- °C
- Remarks on result:
- other: Glass transition
- Conclusions:
- No melting point was found between -100°C and the vaporization of the test item.
A reproducible glass transition was found at -60°C. - Executive summary:
In this guideline (OECD 102) study conducted with GLP certification, the test material (EC 231-272-0) was determined to have a glass transition point of - 60°C.
Reference
A reproducible glass transition was found at -60°C in the 2nd heating.
An endothermic peak starting at about 240°C onset shows the vaporization of the test substance.
Exothermic reaction was not observed up to 500°C.
No melting point was found between -100°C and vaporization of the test substance.
The estimated accuracy is +/-1°C.
Description of key information
Study conducted to recognised training guidelines with GLP
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -60 °C
Additional information
The measurement was carried out by DSC.
No melting point was found between -100°C and vaporization at 240°C. A reproducible glass transition was found at -60°C.
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