Registration Dossier

Diss Factsheets

Physical & Chemical properties

Auto flammability

Currently viewing:

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:
15 January 2016 to 07 December 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))
Deviations:
no
Qualifier:
according to guideline
Guideline:
ASTM E659 (Standard test method for autoignition temperature of liquid chemicals)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Key result
Auto-ignition temperature:
364 °C
Atm. press.:
99.2 kPa

- The auto ignition temperature of the test material was 364 ± 4 °C, the atmospheric pressure on the day of testing was 99.2 kPa.

Table 1: Auto-Ignition Temperature Study Results

Test Run

Volume of test material injected (µL)

Actual temperature (°C)

Event time (s)

Experimental time (s)

Observations

1

100

403

4

206

Orange flame, white smoke

2

100

311

N/A

310

White smoke

3

100

321

N/A

294

White smoke

4

100

331

N/A

298

White smoke

5

100

352

N/A

330

White smoke

6

100

363

N/A

310

White smoke

7

100

373

4

266

Orange flame, loud pop

8

100

369

8

146

Orange flame, loud pop

9

100

365

N/A

310

White smoke

10

50

365

N/A

312

White smoke

11

500

365

6 and 70

360

Two ignitions, two pops, orange flame

12

500

355

N/A

352

White smoke

13

500

364

N/A

382

White smoke

14

1000

364

80

276

Orange flame, soft pop

15

1000

360

N/A

438

White smoke

N/A = no ignition

Conclusions:
Under the conditions of this study, the auto ignition temperature of the test material was 364 ± 4 °C, at the atmospheric pressure of 99.2 kPa.
Executive summary:

The auto ignition temperature of the test material was investigated in accordance with the standardised guidelines EU Method A.15 and ASTM-E 659-78, under GLP conditions.

The required volume of test material was injected as droplets with a pipette into the centre of the flask which was contained within an oven. The time when any flash or flame was observed was read from the chart trace, or the test was run for approximately five minutes. The procedure was repeated at different temperatures and with different sample volumes until the minimum value of the ignition temperature was obtained. The tests were made in appropriate temperature steps until the lowest temperature at which ignition occurs had been determined. This is the auto-ignition temperature. The atmospheric pressure at the time of testing was recorded.

Under the conditions of this study, the auto ignition temperature of the test material was 364 ± 4 °C, at the atmospheric pressure of 99.2 kPa.

Description of key information

Under the conditions of this study, the auto ignition temperature of the test material was 364 ± 4 °C, at the atmospheric pressure of 99.2 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 guidelines EU Method A.15 and ASTM-E 659-78, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The required volume of test material was injected as droplets with a pipette into the centre of the flask which was contained within an oven. The time when any flash or flame was observed was read from the chart trace, or the test was run for approximately five minutes. The procedure was repeated at different temperatures and with different sample volumes until the minimum value of the ignition temperature was obtained. The tests were made in appropriate temperature steps until the lowest temperature at which ignition occurs had been determined. This is the auto-ignition temperature. The atmospheric pressure at the time of testing was recorded.

Under the conditions of this study, the auto ignition temperature of the test material was 364 ± 4 °C, at the atmospheric pressure of 99.2 kPa.

Categories Display