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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:
08 February 2010 to 12 April 2010
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:
other: Deutsches Institut für Normung (DIN), DIN Guide 51794: "Determining the Ignition Temperature of Petroleum Products", May 2003.
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: International Electrotechnical Commision (IEC), IEC standard 79-4: "Electrical Apparatus for Explosive Gas Atmospheres, Part 4, Method of Test for Ignition Temperature", 1975.
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Conducted in compliance with OECD Good Laboratory Practices Guidelines (19917)
Key result
Auto-ignition temperature:
560 °C
Atm. press.:
>= 1 017 - <= 1 023.2 hPa
Remarks on result:
other:

Preliminary test

The estimated auto-ignition temperature was 570 °C.

 

Main study

Ignition of the test material within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 20 °C. According to the guidelines, no further testing was required.

The lowest temperature at which ignition of the test material occurred was 562 °C. This temperature was rounded off to the nearest multiple of 5 °C giving an auto-ignition temperature of the test material of 560 °C.

Table 2: Main study- auto ignition temperature of the test material

Test

Volume [µL]

Auto-ignition temperature [°C]

Ignition delay [s]

Colour of the flame

Minimum auto-ignition temperature [°C]

 

1

10

583

1

Orange/blue

 

571

70

571

2

Orange/blue

100

602

1

Orange/blue

 

2

25

577

1

Orange/blue

 

562

60

562

1

Orange/blue

90

591

1

Orange/blue

 

3

50

581

1

Orange/blue

 

565

80

565

1

Orange/blue

95

568

1

Orange/blue
Conclusions:
Under the conditions of this study, the test material was found to be auto-ignitable with an auto-ignition temperature of 560 °C at 1017.0-1023.2 hPa.
Executive summary:

The study was performed to EU Method A.15, under GLP conditions using a commercially available auto-ignition temperature apparatus.

Under the conditions of this study, the test material was found to be auto-ignitable with an auto-ignition temperature of 560 °C at 1017.0-1023.2 hPa.

Description of key information

Under the conditions of this study, the test material was found to be auto-ignitable with an auto-ignition temperature of 560 °C at 1017.0-1023.2 hPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
560 °C

Additional information

The study was performed to EU Method A.15, under GLP conditions using a commercially available auto-ignition temperature apparatus.

Under the conditions of this study, the test material was found to be auto-ignitable with an auto-ignition temperature of 560 °C at 1017.0-1023.2 hPa.