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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
22 December to 16 January 2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
GLP compliance:
yes (incl. certificate)
Key result
Auto-ignition temperature:
364 °C
Atm. press.:
100.9 - 101.1 kPa
Remarks on result:
other: 364 ± 5 °C

Table 1: Summary of Results

Test Temperature (°C)

Test Volume (µL)

Ignition Delay (s)

Observations

200 (clean flask)

70

>300

No ignition. Grey fumes were emitted.

250 (clean flask)

70

>300

No ignition. Grey fumes were emitted.

300 (clean flask)

70

>300

No ignition. Grey fumes were emitted.

350

70

>300

No ignition. Grey fumes were emitted.

400

70

1

An orange flame. Grey fumes were emitted.

380

70

2

An orange flame. Grey fumes were emitted.

370

70

4

An orange flame. Grey fumes were emitted.

360

70

>300

No ignition. Grey fumes were emitted.

364

70

4

An orange flame. Grey fumes were emitted.

362 (clean flask)

70

>300

No ignition. Grey fumes were emitted.

362 (clean flask)

200

>300

No ignition. Grey fumes were emitted.

362 (clean flask)

400

>300

No ignition. Grey fumes were emitted.

362 (clean flask)

600

>300

No ignition. Grey fumes were emitted.

362 (clean flask)

800

>300

No ignition. Grey fumes were emitted.

362 (clean flask)

1000

>300

No ignition. Grey fumes were emitted.

Room temperature: 19 to 20 °C

Atmospheric pressure: 100.9 to 101.1 kPa

Conclusions:
Under the conditions of this study, the test material was determined to have an auto-ignition temperature of 364 ± 5 °C at 100.9 to 101.1 kPa.
Executive summary:

The auto ignition temperature of the test material was investigated in accordance with the standardised guideline EU Method A.15 under GLP conditions.

The test flask was heated in a flask heater. Aliquots of the test material (as received) between 70 and 1000 µL were injected into the flask using a syringe and the flask was observed for signs of ignition over a 300 second period. This procedure was repeated, varying the sample size as necessary, until the lowest temperature at which ignition, if any, occurred within 300 seconds of insertion, was determined.

Under the conditions of this study, the test material was determined to have an auto-ignition temperature of 364 ± 5 °C at 100.9 to 101.1 kPa.

Description of key information

The test material was determined to have an auto-ignition temperature of 364 ± 5 °C at 100.9 to 101.1 kPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
364 °C

Additional information

The auto ignition temperature of the test material was investigated in accordance with the standardised guideline EU Method A.15 under GLP conditions. The study was assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al. (1997).

The test flask was heated in a flask heater. Aliquots of the test material (as received) between 70 and 1000 µL were injected into the flask using a syringe and the flask was observed for signs of ignition over a 300 second period. This procedure was repeated, varying the sample size as necessary, until the lowest temperature at which ignition, if any, occurred within 300 seconds of insertion, was determined.

Under the conditions of this study, the test material was determined to have an auto-ignition temperature of 364 ± 5 °C at 100.9 to 101.1 kPa.