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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:
23 January - 20 October, 2015
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 was reported. Test substance is adequately specified with purity. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: BS 4056
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
UK GLP compliance programme (inspected on 05 February 2014 / signed on 07 October 2015)
Key result
Auto-ignition temperature:
374 °C
Atm. press.:
1 024 mBar

Table 4.12/1: Auto flammability – results

Test temperature (°C)

Test volume (µL)

Time (s)

Observation

400

70

2

Yellow flame

350

70

>300

White smoke, no ignition

350

1000

>300

White smoke, no ignition

376

70

2

Yellow flame

362

70

>300

White smoke, no ignition

362

1000

>300

White smoke, no ignition

368

70

>300

White smoke, no ignition

368

1000

>300

White smoke, no ignition

372

70

>300

White smoke, no ignition

372

1000

>300

White smoke, no ignition

374

70

4

Yellow flame

372

100

>300

White smoke, no ignition

372

200

>300

White smoke, no ignition

372

500

>300

White smoke, no ignition

372

70

>300

White smoke, no ignition

372

70

>300

White smoke, no ignition

372

70

>300

White smoke, no ignition

372

70

>300

White smoke, no ignition

372

70

>300

White smoke, no ignition

Atmospheric pressure: 1024 mbar

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

The auto-ignition temperature of the test substance was measured under GLP according to BS 4056 standard (listed in EU A.15 guideline). Test substance was injected into a heated flask, and the lowest flask temperature at which ignition occurred was taken as the auto-ignition temperature.

The auto-ignition temperature of the test substance has been determined to be 374 °C.

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:
374 °C

Additional information

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