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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-02-20 to 2012-03-13
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:
270 °C
Atm. press.:
1 023.3 - 1 035 hPa
Remarks on result:
other: The lowest temperature at which ignition of the test substance occurred was 272°C. This temperature was rounded off to the nearest multiple of 5°C.

Preliminary result:

The estimated auto-ignition temperature was 300°C.

Main study result:

The results of the main study on the determination of the auto-ignition temperature of the test substance are given 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. According to the guidelines, no further testing was required.

 

The lowest temperature at which ignition of the test substance occurred was 272°C. This temperature was rounded off to the nearest multiple of 5°C giving an auto-ignition temperature of the test substance of 270°C.

 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

292

10

Orang/blue

272

 

200

277

22

Orange/blue

 

 

500

272

38

Orange/blue

 

 

750

275

44

Orange/blue

 

 

 

 

 

 

 

2

100

289

9

Orange/blue

272

 

400

272

31

Orange/blue

 

 

700

300

13

Orange/blue

 

 

 

 

 

 

 

3

120

289

16

Orange/blue

272

 

450

272

72

Orange/blue

 

 

650

296

15

Orange/blue

 

 

 

 

 

 

 

Conclusions:
An auto-ignition temperature of 270°C at 1023.3 - 1035 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 (Amino functional alkoxysilanes): 270°C at 1023.3 - 1035 hPa (EU Method A.15)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
270 °C

Additional information

A measured auto-ignition temperature of 270°C at 1023.3 - 1035 hPa was determined for the registered substance in accordance with EU Method A.15 and in compliance with GLP. The result is considered to be reliable.