Registration Dossier
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EC number: 242-286-1 | CAS number: 18407-07-3
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 Jul to 28 Jul 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- GLP compliance:
- yes (incl. QA statement)
- Auto-ignition temperature:
- 230 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- An auto-ignition temperature of 230 °C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol.
Reference
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 |
97 |
97 |
No |
/ |
/ |
/ |
98.5 |
46 |
2 |
155 |
155 |
No |
/ |
/ |
/ |
98.5 |
44 |
3 |
203 |
203 |
No |
/ |
/ |
/ |
98.5 |
47 |
4 |
252 |
252 |
Yes |
53 |
271 |
272 |
98.4 |
46 |
5 |
237 |
237 |
Yes |
17 |
261 |
262 |
98.4 |
45 |
6 |
228 |
228 |
No |
/ |
/ |
/ |
98.4 |
44 |
7 |
231 |
231 |
No |
/ |
/ |
/ |
98.3 |
41 |
The auto-ignition temperature was situated between 231 °C and 237 °C (corrected values).
Main test
Volume of test item injected in the oven: 70 µL
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 centre of the test flask after auto-ignition (°C) |
Atmospheric pressure (kPa) |
Relative humidity (%) |
||
Assay No. |
Observed |
Corrected |
Lag (s) |
Observed |
Corrected |
||
1 |
234 |
234 |
21 |
260 |
261 |
98.4 |
43 |
2 |
233 |
233 |
37 |
257 |
257 |
98.4 |
44 |
3 |
235 |
235 |
22 |
259 |
259 |
98.4 |
41 |
4 |
236 |
236 |
17 |
261 |
262 |
98.3 |
40 |
5 |
237 |
237 |
16 |
263 |
264 |
98.3 |
40 |
Conclusion
The lowest value of the main series was 233 °C ± 3 °C (corrected temperature) and the auto-ignition temperature of the test item was 230 °C (reduced down to the next lower multiple of 5 °C).
Description of key information
Dichlorododecylmethylsilane: 230 °C (measured)
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 230 °C
Additional information
An auto-ignition temperature of 230°C at 1013 hPa was obtained for the parent substance according to EU test method A.15.
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