Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 202-858-3 | CAS number: 100-50-5
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- DIN EN 14522, Method P (Determination of the auto ignition temperature of gases and vapours)
- Version / remarks:
- It is not specified if method "P" or method "S" was employed.
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- Deviations:
- no
- GLP compliance:
- no
- Specific details on test material used for the study:
- LOT: 21060301
Purity: 99.63% - Auto-ignition temperature:
- 247 °C
- Atm. press.:
- 1 001.8 hPa
- Remarks on result:
- preliminary test
- Remarks:
- 5 drops were added into the Erlenmeyer flask at each temperature.
- Auto-ignition temperature:
- 226 °C
- Atm. press.:
- >= 1 001.8 - <= 1 003.4 hPa
- Remarks on result:
- other: DIN EN 14522: The auto-ignition temperature reduced by 1.5 % and rounded to the nearest integer temperature was determined as 226 °C.
- Key result
- Auto-ignition temperature:
- 225 °C
- Atm. press.:
- >= 1 001.8 - <= 1 003.4 hPa
- Remarks on result:
- other: Regulation (EC) No 440/2008 method A.15. and DIN 51794: The auto-ignition temperature rounded down to the nearest multiple of 5 °C was determined as 225 °C.
- Conclusions:
- The test item 1,2,3,6-Tetrahydrobenzaldehyde has an auto-ignition temperature of 225 °C.
- Executive summary:
The test item 1,2,3,6-Tetrahydrobenzaldehyde has an auto-ignition temperature of 225 °C according to Regulation (EC) No 440/2008 Method A.15. Auto-Ignition Temperature (Liquids and Gases) and DIN 51794 (2003): Testing of mineral oil hydrocarbons – Determination of Ignition Temperature.
It is noted here that according to ECHA guidance – Guidance on information requirements and chemical safety assessment; chapter R.7A: Endpoint specific guidance, July 2017 – the auto-ignition temperature for liquids is not used directly for classification and labeling according to Regulation (EC) No 1272/2008. However, it can be used in the chemical safety assessment in considering risks associated with processing the substance.
According to DIN EN 13463-1 the test item has to be assigned to temperature class T3 (maximum surface temperature / minimum auto ignition temperature: 200 °C).
Reference
Table 1: Results of the preliminary test
| Preliminary test | |||
| Temperature / °C | 223 | 244 | 247 |
| Ignition / +/- | - | - | + |
| Atmospheric pressure: 1001.8 hPa | |||
In the preliminary test, an ignition was observed at 247 °C.
Table 2: Results of the main test
| Main test series | Lowest temperatures of an ignition | Highest temperatures of an igntition | Atmospheric pressure |
| 1 (ZT2) | 230 | 228 | 1001.8 |
| 2 (ZT2) | 229 | 228 | 1001.8 |
| 3 (ZT3) | 231 | 229 | 1002.7 - 1003.4 |
Based on results of the main test series, the lowest auto-ignition temperature was 229 °C.
According to DIN EN 13463-1 the test item has to be assigned to temperature class T3 (see the following Table 3).
Table 3: Temperature classes
| Temperature class | Maximum surface temperature / minimum auto ignition temperature [°C] |
| T1 | 450 |
| T2 | 300 |
| T3 | 200 |
| T4 | 135 |
| T5 | 100 |
| T6 | 85 |
Description of key information
The test item 1,2,3,6-Tetrahydrobenzaldehyde has an auto-ignition temperature of 225 °C according to Regulation (EC) No 440/2008 Method A.15. Auto-Ignition Temperature (Liquids and Gases) and DIN 51794 (2003): Testing of mineral oil hydrocarbons – Determination of Ignition Temperature.
It is noted here that according to ECHA guidance – Guidance on information requirements and chemical safety assessment; chapter R.7A: Endpoint specific guidance, July 2017 – the auto-ignition temperature for liquids is not used directly for classification and labeling according to Regulation (EC) No 1272/2008. However, it can be used in the chemical safety assessment in considering risks associated with processing the substance.
According to DIN EN 13463-1 the test item has to be assigned to temperature class T3 (maximum surface temperature / minimum auto ignition temperature: 200 °C).
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 225 °C
Additional information
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.
