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Physical & Chemical properties

Auto flammability

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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:
2011-11-08 to 2011-11-10
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: DIN Guide 51794: "Determining the Ignition Temperature of Petroleum Products" (2003)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: IEC standard 79-4: "Electrical Apparatus for Explosive Gas Atmospheres, Part 4, Method of Test for Ignition Temperature" ( 1975)
Deviations:
no
GLP compliance:
yes
Key result
Auto-ignition temperature:
225 °C
Atm. press.:
ca. 1 018.5 - ca. 1 022 hPa
Remarks on result:
other: The lowest temperature at which ignition of the test substance occurred was 229°C.

Preliminary test:

The estimated auto-ignition temperature was 250°C.

Main test:

The results of the main study are reported in the table below. Ignition of the test substance 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 <10°C.

The lowest temperature at which ignition of the test substance occurred was 229°C. This temperature was rounded off to the nearest multiple of 5°C giving an auto-ignition temperature of the test substance of 225°C at 1018.5 - 1022.0 hPa.

Test

Volume (µL)

Auto-ignition

temperature

[°C]

Ignition delay [s]

Colour of the

Flame

Minimum auto-ignition

temperature

[°C]

Test 1

70

225

300

1000

244

233

232

234

33

86

90

91

orange

orange

orange

orange

232

Test 2

110

650

900

240

229

234

68

122

93

orange

orange

orange

229

Test 3

150

500

800

235

230

231

41

136

98

orange

orange

orange

230

Conclusions:
An auto-ignition temperature of 225°C at 1018.5 - 1022.0 hPa was determined for the substance in accordance with EU Method A.15 and in compliance with GLP. The result is considered reliable.

Description of key information

Auto-ignition temperature: 225°C at 1018.5 - 1022.0 hPa (EU Method A.15)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
225 °C

Additional information

An auto-ignition temperature value of 225°C at 1018.5 - 1022.0 hPa was determined for the substance in accordance with EU Method A.15 test guideline and in compliance with GLP. The result is considered to be reliable.