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EC number: 224-588-5 | CAS number: 4420-74-0
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-05-29 to 2017-06-09
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- AFNOR: NF T 20-037
- Version / remarks:
- 1985
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Auto-ignition temperature:
- 243 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- An auto-ignition temperature value of 243 ± 3 °C at 1013 hPa was determined for the substance using a relevant test method and in compliance with GLP. The result is considered to be reliable.
Reference
Results:
Preliminary test
Injection No. | Volume of test item injected in the oven (µL) | Temperature | Auto-ignition | Maximal temperature of the air recorded in the center of the test flask after auto-ignition (°C) | Atm pressure | Relative humidity | |||
Observed | Corrected | Y / N | Lag(s) | Observed | Corrected | ||||
1 | 70 | 109 | 109 | N | / | / | / | 97.4 | 52 |
2 | 70 | 152 | 152 | N | / | / | / | 97.4 | 52 |
3 | 70 | 200 | 200 | N | / | / | / | 97.4 | 53 |
4 | 70 | 250 | 250 | Y | 8 | 268 | 268 | 97.6 | 54 |
5 | 70 | 223 | 223 | N | / | / | / | 97.8 | 46 |
6 | 70 | 236 | 236 | N | / | / | / | 97.8 | 41 |
7 | 70 | 243 | 243 | Y | 35 | 250 | 250 | 97.9 | 38 |
8 | 70 | 238 | 238 | N | / | / | / | 98.7 | 38 |
9 | 90 | 238 | 238 | N | / | / | / | 98.7 | 36 |
10 | 110 | 238 | 238 | Y | 49 | 258 | 258 | 98.7 | 36 |
11 | 130 | 238 | 238 | Y | 50 | 253 | 253 | 98.7 | 37 |
12 | 150 | 238 | 238 | N | / | / | / | 98.7 | 34 |
13 | 130 | 236 | 236 | N | / | / | / | 98.4 | 36 |
14 | 110 | 236 | 236 | N | / | / | / | 98.4 | 37 |
The lowest auto-ignition temperature was found between 236 °C and 238 °C (corrected values) with a volume of 110 µL.
The main test will be conducted using this volume.
Main test
Volume of test item injected in the oven: 110 µL
Assay No. 1
Injection No. | Temperature (°C) | Auto-ignition | Lag (s) | Maximal temperature of the air recorded in the center of the test flask after auto-ignition (°C) | Atmospheric pressure | Relative humidity | ||
Observed | Corrected | Observed | Corrected | |||||
1 | 236 | 236 | N | / | / | / | 98.4 | 37 |
2 | 238 | 238 | N | / | / | / | 98.2 | 36 |
3 | 240 | 240 | N | / | / | / | 98.2 | 38 |
4 | 242 | 242 | N | / | / | / | 98.0 | 36 |
5 | 243 | 243 | Y | 49 | 257 | 257 | 98.0 | 34 |
Assay No. 2
Injection No. | Temperature (°C) | Auto-ignition | Lag (s) | Maximal temperature of the air recorded in the center of the test flask after auto-ignition (°C) | Atmospheric pressure | Relative humidity | ||
Observed | Corrected | Observed | Corrected | |||||
1 | 243 | 243 | N | / | / | / | 98.2 | 43 |
2 | 244 | 244 | Y | 38 | 259 | 259 | 98.2 | 44 |
Assay No. 3
Injection No. | Temperature (°C) | Auto-ignition | Lag (s) | Maximal temperature of the air recorded in the center of the test flask after auto-ignition (°C) | Atmospheric pressure | Relative humidity | ||
Observed | Corrected | Observed | Corrected | |||||
1 | 244 | 244 | Y | 35 | 257 | 257 | 98.2 | 48 |
2 | 243 | 243 | Y | 50 | 253 | 253 | 98.2 | 51 |
3 | 241 | 241 | N | / | / | / | 98.1 | 46 |
4 | 242 | 242 | N | / | / | / | 98.1 | 46 |
Assay No. 4
Injection No. | Temperature (°C) | Auto-ignition | Lag (s) | Maximal temperature of the air recorded in the center of the test flask after auto-ignition (°C) | Atmospheric pressure | Relative humidity | ||
Observed | Corrected | Observed | Corrected | |||||
1 | 242 | 242 | N | / | / | / | 98.1 | 45 |
2 | 243 | 243 | Y | 45 | 257 | 257 | 98.1 | 45 |
Assay No. 5
Injection No. | Temperature (°C) | Auto-ignition | Lag (s) | Maximal temperature of the air recorded in the center of the test flask after auto-ignition (°C) | Atmospheric pressure | Relative humidity | ||
Observed | Corrected | Observed | Corrected | |||||
1 | 243 | 243 | Y | 41 | 259 | 259 | 98.1 | 46 |
2 | 242 | 242 | N | / | / | / | 98.1 | 46 |
Summary
Only the auto-ignition runs for each assay are summarised in the following table:
| Auto-ignition temperature (°C) | Auto-ignition | Maximal temperature of the air recorded in the center of the test flask after ignition (°C) | Atmospheric pressure | Relative humidity | ||
Assay No. | Observed | Corrected | Lag(s) | Observed | Corrected | ||
1 | 243 | 243 | 49 | 257 | 257 | 98.0 | 34 |
2 | 244 | 244 | 38 | 259 | 259 | 98.2 | 44 |
3 | 243 | 243 | 50 | 253 | 253 | 98.2 | 51 |
4 | 243 | 243 | 45 | 257 | 257 | 98.1 | 45 |
5 | 243 | 243 | 41 | 259 | 259 | 98.1 | 46 |
Conclusion
The auto-ignition temperature of the test item was 243 ± 3 °C (corrected temperature).
Description of key information
Auto-ignition temperature: 243 ± 3 °C at 1013 hPa (EU Method A.15)Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 243 °C
Additional information
An auto-ignition temperature value of 243 ± 3 °C at 1013 hPa was determined for the substance using a relevant test method and in compliance with GLP. The result is considered to be reliable.
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