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EC number: 245-904-8 | CAS number: 23843-64-3
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:
- 17 Jan to 14 Dec 2016
- 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:
- Groupe Interministerial des Produits Chimiques, 67 rue Barbes, 94201 Ivry-sur Seine
- Auto-ignition temperature:
- > 372 - < 378 °C
- Atm. press.:
- 980 hPa
- Conclusions:
- An auto-ignition temperature of 375 +/-3 °C at 980 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 |
102 |
103 |
No |
/ |
/ |
/ |
97.6 |
43 |
2 |
150 |
151 |
No |
/ |
/ |
/ |
97.8 |
51 |
3 |
200 |
201 |
No |
/ |
/ |
/ |
97.7 |
50 |
4 |
248 |
249 |
No |
/ |
/ |
/ |
97.7 |
50 |
5 |
301 |
302 |
No |
/ |
/ |
/ |
97.6 |
49 |
6 |
347 |
348 |
No |
/ |
/ |
/ |
97.5 |
48 |
7 |
402 |
403 |
Yes |
2 |
435 |
436 |
97.5 |
49 |
8 |
374 |
375 |
No |
/ |
/ |
/ |
97.7 |
56 |
9 |
384 |
385 |
Yes |
4 |
403 |
404 |
97.6 |
54 |
The auto-ignition temperature was situated between 375°C and 385°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 centre of the test flask after ignition (°C) |
Atmospheric pressure (kPa) |
Relative humidity (%) |
||
Assay No. |
Observed |
Corrected |
Lag (s) |
Observed |
Corrected |
||
1 |
375 |
376 |
3 |
382 |
383 |
97.7 |
45 |
2 |
374 |
375 |
4 |
390 |
391 |
97.7 |
33 |
3 |
374 |
375 |
4 |
397 |
398 |
98.1 |
48 |
4 |
376 |
377 |
3 |
398 |
399 |
98.0 |
48 |
5 |
376 |
377 |
2 |
389 |
390 |
98.0 |
49 |
Conclusion
The auto-ignition temperature of the test item was 375°C ± 3°C (corrected temperature).
Description of key information
[3-(trimethoxysilyl)propyl]urea: 375 +/- 3°C at 980 hPa (measured)
Key value for chemical safety assessment
Additional information
An auto-ignition temperature of 375 +/-3 °C at 980 hPa was obtained for the parent substance according to EU test method A.15.
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