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EC number: 208-904-9 | CAS number: 546-56-5
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Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016-11-23 to 2016-11-25
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- Version / remarks:
- Commission Directive 92/69/EEC, Commission Regulation (EC) No. 440/2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Remarks on result:
- no self-ignition observed up to the melting point
- Conclusions:
- No self-ignition temperature of the test item was observed up to the melting point at about 200°C using a relevant test method and in compliance with GLP. The result is considered to be reliable.
Reference
Results
Assay No. 1
Duration of the test: 794.5 min
Rate: 0.50°C/min
Observations:
At the start of the test, the test item was a white powder.
At the end of the test, the cube was empty, the test item melted
The plot/curve is shown in figure attached (Graph 1)
Assay No. 2
Duration of the test: 796.5 min
Rate: 0.50°C/min
Observations
At the start of the test, the test item was a white powder.
At the end of the test, the cube was empty, the test item melted
The plot/curve is shown in figure attached (Graph 2)
Conclusion
No self-ignition temperature of the test item was observed up to the melting point at about 200°C (corresponding to the small endothermic peak).
Description of key information
Self-ignition temperature: no self-ignition up to the melting point of 200°C (EU Method A.16)
Key value for chemical safety assessment
Additional information
The self-ignition temperature of the substance was assessed in a study that was conducted in accordance with EU Method A.16 and in compliance with GLP. During the study, no self-ignition temperature of the test item was observed up to the melting point at about 200°C. The result is considered to be reliable and is used as key study.
A minimum cloud ignition temperature value of 590°C was determined for the milled sample (<63 µm) of the substance in accordance with BS EN 50281-2-1:1999.
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