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EC number: 205-560-1 | CAS number: 142-78-9
Auto flammability
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:
- 19 July 2017 - 14 May 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Study was conducted in accordance with international guidelines and in accordance with GLP. All guideline validity criteria were met.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- Version / remarks:
- Regulation (EC) 440/2008 of 30 May 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Relative self-ignition temperature:
- 354 °C
- Conclusions:
- The test item has been determined to have an auto-ignition temperature of 354 ± 5 °C.
- Executive summary:
EU Method A.15. – The auto-ignition temperature of the test item was determined using a procedure designed to be compatible with Method A.15., Auto-Ignition Temperature (Liquids and Gases), of Commission Regulation (EC) No 440/2008 of 30 May 2008. Due to the test item having a measured melting point range of 86.0 °C ± 0.5 °C (EU Method A.1.; R Butler (2018)), the liquid protocol was selected in place of the solid protocol.
Aliquots of test item (0.2 – 1.0 g) were dropped into a heated flask which was observed for signs of ignition over a 300 second period. This procedure was repeated, varying the sample size, as necessary, until the lowest temperature at which ignition, if any, occurred within 300 seconds of insertion, was determined.
The test item has been determined to have an auto-ignition temperature of 354 ± 5 °C.
Reference
Evaluation of Data:
The auto-ignition temperature is the lowest temperature that will result in the ignition of the test item after being dropped into the test flask.
The room temperature and atmospheric pressure is recorded for each day of the test.
Results:
Table 1: Resultsof the auto-ignitiontemperaturedetermination
Testtemperature (°C) |
Cleanflask (Yes/No) |
Mass(g) |
Ignition Delay (s) |
Observations |
200 |
Yes |
0.2 |
>300 |
No ignition. Small amount of grey fumes emitted. |
250 |
Yes |
0.2 |
>300 |
No ignition. Small amount of grey fumes emitted. |
300 |
Yes |
0.2 |
>300 |
No ignition. Grey fumes were emitted. |
350 |
No |
0.2 |
>300 |
No ignition. Grey fumes were emitted. |
400 |
No |
0.2 |
2 |
An orange flame. Grey fumes were emitted |
370 |
No |
0.2 |
3 |
An orange flame. Grey fumes were emitted. |
360 |
No |
0.2 |
>300 |
No ignition. Grey fumes were emitted. |
364 |
Yes |
0.2 |
5 |
An orange/blue flame. Grey fumes were emitted. |
362 |
Yes |
0.2 |
3 |
An orange flame. Grey fumes were emitted. |
358 |
Yes |
0.2 |
>300 |
No ignition. Grey fumes were emitted. |
360 |
Yes |
0.2 |
>300 |
No ignition. Grey fumes were emitted. |
360 |
Yes |
0.4 |
>300 |
No ignition. Grey fumes were emitted. |
360 |
Yes |
0.6 |
>300 |
No ignition. Grey fumes were emitted. |
360 |
Yes |
0.8 |
1 |
An orange flame. Grey fumes were emitted. |
358 |
Yes |
0.8 |
2 |
An orange flame. Grey fumes were emitted. |
354 |
Yes |
0.8 |
2 |
An orange flame. Grey fumes were emitted. |
352 |
Yes |
0.8 |
>300 |
No ignition. Lots of grey fumes were emitted. |
352 |
Yes |
1.0 |
>300 |
No ignition. Lots of grey fumes were emitted. |
352 |
Yes |
0.6 |
>300 |
No ignition. Grey fumes were emitted. |
352 |
Yes |
0.4 |
>300 |
No ignition. Grey fumes were emitted. |
352 |
Yes |
0.2 |
>300 |
No ignition. Grey fumes were emitted. |
Room temperature: 17 to 19 °C
Atmospheric pressure: 101.1 to 101.9 kPa
Description of key information
Auto Flammability: 354 ± 5 °C; EU Method A.15.; R Butler (2018)
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 354 °C
Additional information
EU Method A.15. – The auto-ignition temperature of the test item was determined using a procedure designed to be compatible with Method A.15., Auto-Ignition Temperature (Liquids and Gases), of Commission Regulation (EC) No 440/2008 of 30 May 2008. Due to the test item having a measured melting point range of 86.0 °C ± 0.5 °C (EU Method A.1.; R Butler (2018)), the liquid protocol was selected in place of the solid protocol.
Aliquots of test item (0.2 – 1.0 g) were dropped into a heated flask which was observed for signs of ignition over a 300 second period. This procedure was repeated, varying the sample size, as necessary, until the lowest temperature at which ignition, if any, occurred within 300 seconds of insertion, was determined.
The test item has been determined to have an auto-ignition temperature of 354 ± 5 °C.
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