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Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 20 June 2016 to 21 June 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 1
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
2008
Deviations:
no
Qualifier:
according to
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Version / remarks:
2003
Deviations:
no
Qualifier:
according to
Guideline:
IEC 60079-4 (Electrical apparatus for explosive gas atmospheres. Part 4: Method of test for ignition temperature)
Version / remarks:
1975
Deviations:
no
GLP compliance:
yes
Test material information:
Composition 1
Key result
Auto-ignition temperature:
<= 210 °C
Atm. press.:
>= 1 014.8 - <= 1 018.5 hPa

Table: Results of the auto-ignition temperature measurements

 

Test

Volume

[μL]

Auto-ignition

temperature

[°C]

Ignition delay

[s]

Colour of the flame

Minimum auto-ignition

temperature

[°C]

 

 

 

 

 

 

1

70

247

26

Orange/Blue

211

 

150

231

43

Orange/Blue

 

 

300

218

57

Orange/Blue

 

 

600

217

110

Orange/Blue

 

 

900

214

101

Orange/Blue

 

 

1000

211

121

Orange/Blue

 

 

 

 

 

 

 

2

200

226

58

Orange/Blue

214

 

400

217

56

Orange/Blue

 

 

800

214

88

Orange/Blue

 

 

 

 

 

 

 

3

250

218

79

Orange/Blue

214

 

500

215

88

Orange/Blue

 

 

950

214

98

Orange/Blue

 

 

 

 

 

 

 

 

Conclusions:
The auto-ignition temperature at 1015-1019 hPa of the substance was determined to be ≤ 210°C.
Executive summary:

The auto-ignition temperature of the substance was determined in a GLP study according to EC A.15, DIN 51794 and IEC 60079-4 to be ≤ 210°C. Three tests were performed, at 1015 -1019 hPa. No minimum auto-ignition temperature as a function of injection volume was observed up to the maximum injection volume of 1000 μL. The lowest temperature at which ignition of the test item occurred was 211°C (at an injection volume of 1000 µL). This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of 210°C. Due to practical reasons, the experiment cannot be performed at larger volumes than tested. The final result can just be determined as maximum auto-ignition temperature with the real value ≤ 210°C.

Description of key information

 The auto-ignition temperature of the substance at 1015 - 1019 hPa was determined in a GLP study according to EC A.15, DIN 51794 and IEC 60079-4 to be ≤ 210°C. 

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
210 °C

Additional information

Key value: ≤ 210°C at 1015 -1019 hPa.

Three tests were performed. No minimum auto-ignition temperature as a function of injection volume was observed up to the maximum injection volume of 1000 μL. The lowest temperature at which ignition of the test item occurred was 211°C (at an injection volume of 1000 µL). This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of 210°C. Due to practical reasons, the experiment cannot be performed at larger volumes than tested. The final result can just be determined as maximum auto-ignition temperature with the real value ≤ 210°C. Though the exact auto-ignition could not be determined, it is expected to be higher than the flash point, which is 95°C.