Registration Dossier
Registration Dossier
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EC number: 255-410-4 | CAS number: 41496-43-9
Auto flammability
Administrative data
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- February 18, 2021
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
- Deviations:
- no
- GLP compliance:
- no
Test material
- Reference substance name:
- 2-methyl-3-(p-tolyl)propionaldehyde
- EC Number:
- 255-410-4
- EC Name:
- 2-methyl-3-(p-tolyl)propionaldehyde
- Cas Number:
- 41496-43-9
- Molecular formula:
- C11H14O
- IUPAC Name:
- 2-methyl-3-(4-methylphenyl)propanal
- Test material form:
- liquid
Constituent 1
Results and discussion
Auto-ignition temperature (liquids / gases)
- Key result
- Auto-ignition temperature:
- 255 °C
- Atm. press.:
- ca. 101.3 hPa
- Remarks on result:
- other: +/- 5°C
Any other information on results incl. tables
Results:
| Temperature | Injected Sample Amount |
Ignition delay | ||
| (°C) | 100 µL | 200 µL | 400 µL | (s) |
| 354 | + | 01 | ||
| 304 | + | 03 | ||
| 264 | + | 24 | ||
| 184 | - | - | - | |
| 204 | - | - | - | |
| 224 | - | - | - | |
| 259 | + | 25 | ||
| 254 | - | - | - | |
+: Positive response (flame, blast or deflagration)
- : Negative response (nothing or smoke only in a delay of 300 seconds)
Applicant's summary and conclusion
- Conclusions:
- Auto-ignition temperature of 2-methyl-3-(p-tolyl)propionaldehyde : 255±5°C
- Executive summary:
The Auto-ignition temperature of 2-methyl-3-(p-tolyl)propionaldehyde was determined in a SUR BERLIN oven, equipped with a 250 ml glass ignition vessel according to the DIN 51794.
The lowest temperature giving a positive effect was 259°C. The injected volume was 100 μI, the ignition delay was 25 s. At a temperature of 254°C no ignition was
observed.
Therefore, after rounding-off to the next-lower multiple of 5°C:
Auto-ignition temperature of 2-methyl-3-(p-tolyl)propionaldehyde : 255±5°C
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