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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 Jun - 11 Aug 2014
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))
Version / remarks:
30 May 2008
Deviations:
no
Qualifier:
according to
Guideline:
IEC 60079-4 (Electrical apparatus for explosive gas atmospheres. Part 4: Method of test for ignition temperature)
Deviations:
no
Principles of method if other than guideline:
Based on, Anon (1987), Electrical Apparatus for Explosive Gas Atmospheres. Part 4: Method of Test for Ignition Temperature. IEC Publications 79-4, P1-19.
GLP compliance:
yes (incl. certificate)
Remarks:
The Department of Health of the Government of the United Kingdom
Key result
Auto-ignition temperature:
296 °C
Atm. press.:
ca. 100.3 - ca. 101.3 kPa
Remarks on result:
other: 296 ± 5°C. Room temperature: 20.0 to 21.0 °C.

Results:

Test temperature [°C]

Test volume [µL]

Ignition delay [s]

Observations

200 (clean flask)

70

> 300

No Ignition. Grey smoke was observed.

250 (clean flask)

70

> 300

No Ignition. Grey smoke was observed.

300

70

> 300

No Ignition. Grey smoke was observed.

350

70

5

A blue flame. Grey smoke was observed.

325 (clean flask)

70

10

A blue/yellow flame. Grey smoke was observed.

310 (clean flask)

70

> 300

No Ignition. Grey smoke was observed.

315 (clean flask)

70

> 300

No Ignition. Grey smoke was observed.

320 (clean flask)

70

12

A blue/yellow flame. Grey smoke was observed.

317 (clean flask)

70

15

A blue/yellow flame. Grey smoke was observed.

316 (clean flask)

70

12

A blue/yellow flame. Grey smoke was observed.

315 (clean flask)

200

12

A blue/yellow flame. Grey smoke was observed.

314 (clean flask)

200

13

A blue/yellow flame. Grey smoke was observed.

313 (clean flask)

200

15

A blue/yellow flame. Grey smoke was observed.

308 (clean flask)

200

18

A yellow/blue flame. Grey smoke was observed.

303 (clean flask)

200

24

A yellow/blue flame. Grey smoke was observed.

298 (clean flask)

200

28

A yellow/blue flame. Grey smoke was observed.

293 (clean flask)

200

> 300

No Ignition. Grey smoke was observed.

295 (clean flask)

200

> 300

No Ignition. Grey smoke was observed.

296 (clean flask)

200

25

A blue/yellow flame. Grey smoke was observed.

295 (clean flask)

400

> 300

No Ignition. Grey smoke was observed.

295 (clean flask)

600

> 300

No Ignition. Grey smoke was observed.

295 (clean flask)

800

> 300

No Ignition. Grey smoke was observed.

295 (clean flask)

1000

> 300

No Ignition. Grey smoke was observed.

295 (clean flask)

1200

> 300

No Ignition. Grey smoke was observed.

Conclusions:
An auto-ignition temperature value of 296 ± 5°C at 100.3 to 101.3 kPa was determined for the substance using a relevant test method and in compliance with GLP. The result is considered to be reliable.

Description of key information

Auto-ignition temperature: 296 ± 5°C at 100.3 to 101.3 kPa (EU Method A.15)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
296 °C

Additional information

An auto-ignition temperature value of 296 ± 5°C at 100.3 to 101.3 kPa was determined for the submission substance using a relevant test method and in compliance with GLP. The result is considered to be reliable.

In a secondary source to which reliability could not be assigned, an auto-ignition temperature value of 360°C was reported for the substance.