Registration Dossier
Registration Dossier
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EC number: 701-340-9 | 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:
- 18h September 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- EU method A.1. No GLP study.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Key result
- Melting / freezing pt.:
- > 1 000 °C
- Decomposition:
- yes
- Decomp. temp.:
- > 1 000 °C
- Remarks on result:
- other: No data on pressure value. It is assumed that the “melting point” is provided at atmospheric pressure.
- Conclusions:
- The test substance decomposes without melting at temperatures over 1000ºC. From T >450ºC some SO2 can release in the presence of air.
- Executive summary:
The aim of this study was the determination of the melting point.
The test procedure used was A.1 method (1.4.4.1 Differential Thermal Analysis; DTA and 1.4.4.2 Differential Scanning Calorimetry, DSC) as described in Regulation CE 440/2008.
The method for analysis was Thermal Gravimetric Analysis
The result was as follows:
The test substance decomposes without melting at temperatures over 1000ºC.
From T >450ºC some SO2 can release in the presence of air.
Reference
Description of key information
The test substance decomposes without melting at temperatures over 1000ºC. From T >450ºC some SO2 can release in the presence of air.
Key study according to A.1 method (1.4.4.1 Differential Thermal Analysis; DTA and 1.4.4.2 Differential Scanning Calorimetry, DSC) as described in Regulation CE 440/2008 (based on OECD guideline 102)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 1 000 °C
Additional information
Key study according to A.1 method (1.4.4.1 Differential Thermal Analysis; DTA and 1.4.4.2 Differential Scanning Calorimetry, DSC) as described in Regulation CE 440/2008 (based on OECD guideline 102).
The test substance decomposes without melting at temperatures over 1000ºC. From T >450ºC some SO2 can release in the presence of air.
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