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Diss Factsheets

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:
02 to 17 Jan 2018
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))
GLP compliance:
yes (incl. QA statement)
Remarks:
Certificat de conformite aux bonnes pratiques de laboratoire selon les directives 2004/9/CE et 2004/10/CE
Auto-ignition temperature:
229 °C
Atm. press.:
1 013 hPa

Preliminary test

The lowest auto-ignition temperature was found at about 230 °C (corrected value) with a volume of 190 µL.

 

The main test will be conducted using this volume.

 

Main test

Volume of test item injected in the oven = 190 µL

Five separate assays were done

 

Summary

Only the auto-ignition runs for each assay are summarised in the following table:

 

 

Auto-ignition temperature (°C)

Auto-ignition

Maximal temperature of the air recorded in the center of the test flask after ignition (°C)

Atmospheric pressure
(kPa)

Corrected Relative humidity
(%)

Assay No.

Observed

Corrected

Lag (s)

Observed

Corrected

1

228

229

68

256

257

97.5

37

2

229

230

59

255

256

98.0

30

3

228

229

64

253

254

98.0

30

4

229

230

64

255

256

98.1

28

5

229

230

62

255

256

98.2

28

 

Conclusion

The auto-ignition temperature of the test item was 229 °C ± 3 °C (corrected temperature).

 

Conclusions:
An auto-ignition temperature of 229 +/-3 °C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol.

Description of key information

Hexyl(trimethoxy)silane: 229 +/-3 °C at 1013 hPa (EU method A.15)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
229 °C

Additional information