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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:
2012-05-29 to 2012-06-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study was conducted in accordance with EC A.15 and in compliance with GLP.
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: DIN 51794
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: IEC standard 79-4
Deviations:
no
GLP compliance:
yes
Auto-ignition temperature:
230 °C
Atm. press.:
ca. 1 002.1 - ca. 1 019.8 hPa
Remarks on result:
other: The lowest temperature at which ignition of the test substance occurred was 234°C

Preliminary study result:

Estimated auto ignition temperature was 250°C.

Main study result:

The result of the main study are shown in Table 2. 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 234°C. This temperature was a multiple of 5°C and therefore given as the auto-ignition temperature of the test substance.

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

Test

Volume [µl]

Auto ignition temperature [°C]

Ignition delay [s]

Colour of flame

Minimum auto ignition temperature [°C]

1

70

150

250

400

700

258

239

236

234

241

16

24

32

13

40

Orange/blue

Orange/blue

Orange/blue

Orange/blue

Orange/blue

234

2

100

350

650

242

236

241

18

20

57

Orange/blue

Orange/blue

Orange/blue

236

32

80

375

600

242

237

242

22

30

29

Orange/blue

Orange/blue

Orange/blue

237

Conclusions:
An auto ignition temperature of 230°C at 1002.1 – 1019.8 hPa was determined for the substance in accordance with an appropriate test method and in compliance with GLP. The result is considered reliable.

Description of key information

Auto flammability  [3-(2,3-epoxypropoxy)propyl]triethoxysilane: 230°C at 1002.1 - 1019.8 hPa (EU Method A.15).

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
230 °C

Additional information

A measured auto flammability value of 230°C at 1002.1 - 1019.8 hPa was determined for the substance using an appropriate test method. The result is considered reliable.