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Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
May - Dec 2017
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))
GLP compliance:
no
Auto-ignition temperature:
372 °C
Atm. press.:
ca. 1 013 hPa
Remarks on result:
other: Pressure not reported, it is assumed that test was performed at normal conditions.

Preliminary test results

In the preliminary test, 26 injections were performed in a temperature range of 103 to 404 °C (corrected values). Auto ignitions occurred at 10 temperature points, from 375 to 404 °C.

The lowest auto-ignition temperature was found between 375 °C and 376 °C (corrected value) with a volume of 190 μL. The main test was therefore conducted using this volume.

 

Main test results

The following table summarizes the auto-ignition runs obtained during the main test.

 

Auto-ignition temperature

(°C)

Auto-ignition lag

(s)

Maximal temperature of the air recorded in the center of the test flask after ignition (°C)

Relative Humidity (%)

Assay

Observed

Corrected

Observed

Corrected

1

374

375

4

390

391

39

2

374

375

2

389

390

38

3

373

374

2

391

392

41

4

371

372

2

385

386

39

5

371

372

5

385

386

55

 

Conclusion

The auto-ignition temperature of the test item is 372 °C ± 3 °C.

Description of key information

Auto-ignition temperature = 372 °C at ca. 1013 hPa (EU Method A.15)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
372 °C

Additional information