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Diss Factsheets

Physical & Chemical properties

Auto flammability

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14-16 June 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to an internationally recognised method, and under GLP. No deviation affected the quality of the study. The substance is considered to be adequately identified. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
Regulation (EC) No 440/2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Version / remarks:
May 2003
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht (inspected on 29 & 30 November 2010 / signed on 11 April 2011)
Specific details on test material used for the study:
Storage condition of test material: fridge (2-8°C); away from light and humidity
Key result
Auto-ignition temperature:
230 °C
Atm. press.:
99 624 Pa

Pre-test

Auto-ignition was recorded at 250°C.

Atmospheric pressure during the pre-test was 99996 Pa.

Strong fuming was observed at temperatures above 190°C.

Main study

Table 4.12/1: Lowest Values Main Study

Experiment

Value

Ignition delay

 Drops used

 Atmospheric pressure

First Experiment

235 °C

25 seconds

8

99931 Pa 

Second Experiment

230 °C

56 seconds

8

99624 Pa

Third Experiment

240 °C

20 seconds

8

99473 Pa

 

The auto ignition temperature (result of determination) is the lowest value from the lowest values of the three experiments, rounded down to a whole multiple of 5 °C. Therefore, the auto ignition temperature is stated as 230 °C.

Detailed observations are available in the study report.

Conclusions:
This parameter/method is not relevant for classification; however the information is useful regarding process safety and potential additional fire hazard.
No particular hazard is anticipated in normal conditions of storage.
Executive summary:

The auto-ignition temperature of the substance was tested under GLP, according to DIN 51794 standard (listed in EU A.15 guideline).

The test substance was injected into a heated flask, until the lowest temperature at which ignition occurs was determined. Three independent determinations were performed.

The auto-ignition temperature (rounded down to a whole multiple of 5 °C) of test item was stated as 230°C at 99624 Pa.

Description of key information

No particular hazard is anticipated in normal conditions of storage.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
230 °C

Additional information

A fully reliable experimental study, conducted according to a recognized DIN/EU method and under GLP, is available. Therefore, it is considered as 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.