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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:
Between 19 March and 27 March 2012.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
GLP compliance:
yes
Auto-ignition temperature:
318 °C
Atm. press.:
>= 103.1 - <= 103.7 kPa

Results

Results of the auto-ignition temperature determination are shown in the following table.

 

Table 3.1

 

Test Temperature (ºC)

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

3

A yellow flame. Grey fumes were emitted.

390

70

3

A yellow flame. Grey fumes were emitted.

380

70

2

A yellow flame. Grey fumes were emitted.

370

70

7

A yellow flame. Grey fumes were emitted.

360

70

>300

No ignition. Grey fumes were emitted.

364

70

5

A yellow flame. Grey fumes were emitted.

362

70

>300

No ignition. Grey fumes were emitted.

362(clean flask)

70

3

A yellow flame. Grey fumes were emitted.

360(clean flask)

70

7

A yellow flame. Grey fumes were emitted.

358(clean flask)

70

>300

No ignition. Grey fumes were emitted.

358(clean flask)

200

4

A yellow flame. Grey fumes were emitted.

356(clean flask)

200

3

A yellow flame. Grey fumes were emitted.

354(clean flask)

200

>300

No ignition. Grey fumes were emitted.

354(clean flask)

400

3

A yellow flame. Grey fumes were emitted.

352(clean flask)

400

7

A yellow flame. Grey fumes were emitted.

350(clean flask)

400

8

A yellow flame. Grey fumes were emitted.

348(clean flask)

400

5

A yellow flame. Grey fumes were emitted.

346(clean flask)

400

9

A yellow flame. Grey fumes were emitted.

344(clean flask)

400

>300

No ignition. Grey fumes were emitted.

344(clean flask)

400

6

A yellow flame. Grey fumes were emitted.

342(clean flask)

400

5

A yellow flame. Grey fumes were emitted.

340(clean flask)

400

10

A yellow flame. Grey fumes were emitted.

338(clean flask)

400

8

A yellow flame. Grey fumes were emitted.

336(clean flask)

400

>300

No ignition. Grey fumes were emitted.

336(clean flask)

600

8

A yellow flame. Grey fumes were emitted.

334(clean flask)

600

>300

No ignition. Grey fumes were emitted.

334(clean flask)

800

9

A yellow flame. Grey fumes were emitted.

332(clean flask)

800

6

A yellow flame. Grey fumes were emitted.

328

800

8

A yellow flame. Grey fumes were emitted.

324

800

9

A yellow flame. Grey fumes were emitted.

320

800

11

A yellow flame. Grey fumes were emitted.

318(clean flask)

800

>300

No ignition. Grey fumes were emitted.

318(clean flask)

1000

10

A yellow flame. Grey fumes were emitted.

316(clean flask)

1000

>300

No ignition. Grey fumes were emitted.

316(clean flask)

1200

>300

No ignition. Grey fumes were emitted.

316(clean flask)

1400

>300

No ignition. Grey fumes were emitted.

316(clean flask)

1600

>300

No ignition. Grey fumes were emitted.

316(clean flask)

1800

>300

No ignition. Grey fumes were emitted.

 

Room temperature:    19 to 20 °C
Atmospheric pressure: 103.1 to 103.7 kPa

Conclusions:
The test item has been determined to have an auto-ignition temperature of 318 ± 5 °C.
Executive summary:

Test System The determination was carried out using a procedure designed to be compatible with Method A15 Auto-Ignition Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008. Performance of the Test The test flask was heated in a flask heater. Aliquots of test item (tested as received) were injected into the flask using a syringe and the flask 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. Conclusion The test item has been determined to have an auto-ignition temperature of 318±5 °C.

Description of key information

The self-ignition temperature of the substance was determined to be 318 ± 5ºC; study conducted in accordance with EU Method A.15; Tremain (2012)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
318 °C

Additional information

In a GLP compliant auto-flammability study conducted in accordance with standardised guidelines, the self-ignition temperature of the test substance was determined. Under the conditions of the test, the self-ignition temperature of the substance was determined to be 318 ± 5ºC.