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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-ignition temperature, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12-Jan to 14-Jan 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
GLP compliance:
yes (incl. certificate)
Remarks:
Groupe Interministerial des Produits Chimiques, 67 rue Barbes, 94201 Ivry-sur Seine
Auto-ignition temperature:
235 °C
Atm. press.:
1 013 hPa

Results

Preliminary test

Volume of test item injected in the oven: 70 µL

 

Temperature
of the assay
(°C)

Auto-ignition

Maximal temperature of the air recorded in the centre of the test flask after auto-ignition (°C)

Atmospheric pressure
(kPa)

Relative humidity
(%)

Assay No.

Observed

Corrected

Y / N

Lag (s)

Observed

Corrected

1

104

104

No

/

/

/

97.4

33

2

147

147

No

/

/

/

97.4

33

3

195

195

No

/

/

/

97.4

35

4

255

255

Yes

4

283

283

97.4

34

5

239

239

Yes

13

263

263

97.4

37

6

226

226

No

/

/

/

97.4

30

7

231

231

No

/

/

/

97.4

31

 

The flash point was observed between 205.0°C and 210.0°C (corrected values).

The auto-ignition temperature was situated between 231 °C and 239 °C (corrected values). This range is given for information, the final result is given by the main test in following section.

Main test

Volume of test item injected in the oven: 70 µL

Only the runs with an auto-ignition observed 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 auto-ignition (°C)

Atmospheric pressure
(kPa)

Relative humidity
(%)

Assay No.

Observed

Corrected

Lag (s)

Observed

Corrected

1

237

237

19

283

283

98.9

30

2

236

236

14

272

272

98.7

28

3

235

235

19

276

276

97.7

32

4

236

236

18

277

277

97.6

36

5

235

235

18

278

278

97.8

38

 

Conclusion

The auto-ignition temperature of the test item was 235 °C ± 3 °C (corrected temperature).

Conclusions:
An auto-ignition temperature of 232 - 238 °C at approximatley 980 hPa was determined in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP.

Description of key information

Trichloro(octadecyl)silane: 235 °C at 1013 hPa (measured).

Key value for chemical safety assessment

Additional information

An auto-ignition temperature value of 235 °C at 1013 hPa was determined according to EU Method A.15.