Registration Dossier
Registration Dossier
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EC number: 947-908-1 | CAS number: -
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is a solid having a melting point <= 160°C
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
In accordance with column 2 of REACh Annex VII, the study does not need to be conducted if the substance is a solid having a melting point <=160°C.
In addition, in the ECHA endpoint specific guidance on information requirements (R.7a, v6.0, July 2017, §R.7.1.12), "solids are considered under self heating substances" and "the UN Test N.4 is preferable to generate the information for this endpoint."
The substance is described as a brown pasty solid (see endpoint 4.1). Then, the substance is considered as totally molten below 160°C and the determination of the relative self-ignition temperature is not required.
Considering the physical state of the substance, self-heating properties (and UN Test N.4) was also considered in this dossier (see endpoint 4.13). - Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- August 2019
- 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. 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:
- equivalent or similar to guideline
- Guideline:
- DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
- Deviations:
- no
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- no
- Key result
- Auto-ignition temperature:
- 280 °C
- Atm. press.:
- >= 1 003.3 - <= 1 012.7 hPa
- Conclusions:
- The auto-ignition temperature of the test item was 280 °C.
- Executive summary:
The study was performed in order to determine the auto-ignition temperature of test item according to EU A.15 guideline.The lowest auto-ignition temperature of the test item was determined to be 282°C in the main test.
The three lowest results of the tests with 2 K steps were within a range of less than 10K. 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 280 °C.
Referenceopen allclose all
Preliminary test
The lowest auto-ignition temperature of the test item was determined to be 297 °C in the preliminary test.
Main test
The following table show the results of the main tests.
Main test series |
Auto-ignition temperature / °C |
Time lag / s |
1stmain test (5 K) |
287 |
60 |
1stmain test (2 K) |
292 |
50 |
2ndmain test (2 K) |
285 |
100 |
3rdmain test (2 K) |
282 |
40 |
The lowest auto-ignition temperature of the test item was determined to be 282 °C in the main test. 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 280 °C.
Description of key information
AIT for liquid and low melting point solids:
The auto-ignition temperature of the test item according to the auto-ignition test conditions in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.15. was 280 °C.
Self-ignition temperature for solids: data waiving.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 280 °C
Additional information
A fully reliable experimental study, conducted according to EU A.15 guideline is available.
It is considered as a key study, and 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.
Self-ignition temperature for solids does not need to be conducted if the substance is a solid having a melting point <=160°C.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
