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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
11-Nov-2015 to 13-Nov-2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP guideline study
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Qualifier:
according to
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Qualifier:
according to
Guideline:
DIN EN 14522, Method P (Determination of the auto ignition temperature of gases and vapours)
GLP compliance:
yes (incl. certificate)
Remarks:
Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Key result
Auto-ignition temperature:
420 °C
Atm. press.:
1 013.8 hPa

Results

Preliminary Test

An approximate value of the ignition temperature of the test item was firstly determined by the preliminary test. Table 1gives the result of the preliminary test. An ignition is denoted as "+" and no ignition is denoted as "-". 5 drops were put into the Erlenmeyer flask at each temperature.

Results of preliminary test

 

Preliminary Test

temperature /°C

287

338

384

432

413

423

Ignition / + / -

-

-

-

-

-

-

 

Atmospheric pressure: 1014.2 hPa

 

In the preliminary test, the lowest temperature at which an ignition occurred was 432°C.

Main test

The table shows a summary of the lowest temperatures at which an ignition occurred in the main test series

Main test series

lowest temperatures of an ignition /°C

highest temperatures without an ignition

Atmospheric pressure / hPa

1

425

420

1012.8 – 1014.8

2

428

424

1015.2

3

428

423

1012.1

 

Regulation EC No. 440/2008 method A.15. and DN 51794: The auto-ignition temperature rounded down to the nearest multiple of 5 °C was determined as 420 °C.

Description of key information

Auto-ignition temperature = 420 °C at 1013.8 hPa (A.15., DIN 51794)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
420 °C

Additional information

The auto-ignition temperature of the test item was determined according to EU Method A.15., DIN 51794.