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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:
November 2008 to January 2019
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))
Version / remarks:
2008
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Version / remarks:
2003
Qualifier:
according to guideline
Guideline:
other: IEC 79-4 (Electrical apparatus for explosive gas atmospheres. Part 4: Method of test for ignition temperature)
Version / remarks:
1975
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
inspected on 3-6 April 2007 / signed on 16 May 2007
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: Givaudan Suisse SA/LDP0800001
- Expiration date of the lot/batch: 01 May 2010
- Physical appearance: Clear colourless liquid

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature in the dark
- Stability under storage conditions: Stable
Key result
Auto-ignition temperature:
280 °C
Atm. press.:
>= 983.9 - <= 1 024.3 hPa

Preliminary test

The estimated auto-ignition temperature was 295 °C.

 

Main study

The results of the main study on the determination of the auto-ignition temperature of the test substance are given in 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.

According to the guidelines, no further testing was required. The lowest temperature at which ignition of the test substance occurred was 281 °C. This temperature was rounded off to the nearest multiple of 5 °C giving an auto-ignition temperature of the test substance of 280 °C.

 

Table 4.12/1: Main study - auto-ignition temperature of the test substance

Test

Volume (µL)

Auto-ignition temperature (°C)

Ignition delay (s)

Colour of the flame

Minimum auto-ignition temperature (°C)

1

70

298

28

yellow/orange

286

150

286

39

yellow/orange

275

287

31

yellow/orange

2

100

289

51

yellow/orange

281

200

281

41

yellow/orange

250

284

36

yellow/orange

3

80

300

35

yellow/orange

285

210

285

43

yellow/orange

300

294

23

yellow/orange

 

Conclusions:
The auto-ignition temperature of the test item was determined according to EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases)), DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature) and IEC 79-4 (Electrical apparatus for explosive gas atmospheres. Part 4: Method of test for ignition temperature). The test substance is auto-ignitable with an autoignition temperature at 983.9 - 1024.3 hPa of 280°C.
Executive summary:

The auto-ignition temperature of the test item was determined according to EU Method A.15, DIN 51794 and IEC 79-4.


 he test substance has an autoignition temperature of 280°C at 983.9 - 1024.3 hPa.

Description of key information

Auto-Ignition temperature of test item was determined to be 280°C.


No particular hazard is anticipated in normal conditions of storage.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
280 °C

Additional information

A reliable experimental study, conducted according to a recognized EC method is available. It is considered as a key study.


This parameter is not relevant for classification, however the information is useful regarding process safety and potential additional fire hazard.