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EC number: 946-922-5 | CAS number: -
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:
- 01 - 15 December 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.
- 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:
- DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
- Version / remarks:
- The study was performed closely following the standard DIN 51794:2003-05
- Deviations:
- no
- Principles of method if other than guideline:
- not applicable
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- inspected on 20 and 21 June 2017 / signed on 04 September 2017
- Key result
- Auto-ignition temperature:
- 365 °C
- Atm. press.:
- >= 976.8 - <= 1 028.4 hPa
- Conclusions:
- This parameter/method is not relevant for classification, however the information is useful regarding potential additional fire hazard. No particular hazard is anticipated in normal conditions of storage.
- Executive summary:
The study was conducted under GLP according to standard DIN 51794:2003 -05 (listed in EU A.15 guideline).
Under the test conditions, the lowest temperature that will result in the ignition of the test item after being injected into the apparatus was determined as 365 °C between 976.8 and 1028.4 hPa. This value was determined using approximately 0.2g of test substance. The test substance showed auto ignition after 9 seconds.
Reference
Results of the preliminary test:
Temperatures where auto-ignition was detected are marked with +; temperatures where no auto-ignition was detected are marked with - in the table below. The amount of test item tested at each measurement is indicated as numbers of portions (1 portion: approximately 0.1 g).
Table1, 2 & 3: Auto-ignition temperature (preliminary test)
Preliminary test |
|||
T / °C |
portions |
+ / - |
Time lag / s |
203 |
5 |
- |
- |
253 |
5 |
- |
- |
303 |
5 |
- |
- |
353 |
5 |
- |
- |
409 |
5 |
- |
- |
barometric pressure: 1007.9 hPa |
|||
Preliminary test continued |
|||
T / °C |
portions |
+ / - |
Time lag / s |
403 |
5 |
+ |
0 |
barometric pressure: 1021.0 hPa |
|||
Preliminary test continued |
|||
T / °C |
portions |
+ / - |
Time lag / s |
373 |
5 |
- |
- |
393 |
5 |
+ |
6 |
barometric pressure: 1028.4 hPa |
|||
The lowest auto-ignition temperature of the test item was determined to be 393 °C in the preliminary test.
Results of the Main tests:
Table 2: Auto-ignition temperature (summary)
| Main test series | Auto-ignition temperature / °C | Portions | Time lag / s | Barometric pressure / hPa |
| 1st main test (5K) | 373 | 10 | 7 | 1017.1 - 1028.4 |
| 1st main test (2K) | 371 | 10 | 0 | 1003.1 |
| 2nd main test (2K) | 371 | 8 | 7 | 976.8 - 1008.1 |
| 3rd main test (2K) | 367 | 2 | 9 | 989.2 - 989.7 |
The lowest auto-ignition temperature of the test item was determined to be 367°C in the main test.
The auto-ignition-temperatures were above 300 °C and the three lowest results of the tests with 2 K steps were within a range of 20 K. Therefore, the results were considered as valid.
Due to safety reasons and according to the guidelines the lowest measured temperature at which an ignition was observed was rounded to the next lower number divisible by 5, giving a value of 365 °C (976.8 - 1028.4 hPa)
Description of key information
Considering the physical state of the substance (liquid at ambient temperature), the auto-ignition temperature test was taken into account to evaluate the auto-flammability properties of the substance:
The auto-ignition temperature of the test item is stated as 365 °C (at 976.8 - 1028.4 hPa).
No particular hazard is anticipated in normal conditions of storage
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 365 °C
Additional information
A GLP fully reliable experimental study, conducted according to a recognized EU/DIN method, is available. Therefore, it is considered as a key study. The result is retained as key data.
This parameter is not relevant for classification, however the information is useful regarding process safety and potential additional fire hazard
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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