Registration Dossier
Registration Dossier
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EC number: 203-055-0 | CAS number: 102-79-4
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:
- 02 AUG 2021 to 28 OCT 2021
- 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))
- Version / remarks:
- 31 May 2008
- Deviations:
- yes
- Remarks:
- The following deviation from the Guideline was ascertained: The Zündwertprüfer 10-212-000 instrument works with a program according to DIN EN14522. It is possible that more ignition trials are conducted using the EN 14522, therefore, this is uncritical.
- GLP compliance:
- yes (incl. QA statement)
- Auto-ignition temperature:
- 280 °C
- Atm. press.:
- 997.1 - 1 005.1 hPa
- Conclusions:
- The auto ignition temperature is stated as 280 °C.
- Executive summary:
The auto ignition temperature was determined in three independent determinations according to EU Method A.15 in a GLP-study. A lowest value of the main test of 280 °C was found. Therefore, the auto-ignition temperature according to EU A.15 (rounded down to a whole multiple of 5 °C) of N-Butyldiethanolamine is stated as 280 °C.
Reference
FINDINGS, RESULTS AND VALIDITY
Determination of viscosity
The test item was visually compared with the standard liquid Viscosity (50 mPa*s). The viscosity of the test item was above 50 mPa*s.
Pre-Determination
282.51 °C with 5 drops at 1005.0 hPa.
First Test Series
Lowest value of the first test series is 279.85 °C, the drops, which were needed, were 7 and the time until the ignition was detected, was 147 seconds.
Second Test Series
Lowest value of the second test series is 283.99 °C, the drops, which needed, were 7 and the time until the ignition was detected, was 43 seconds.
Third Test Series
Lowest value of the third test series is 282.21 °C, the drops, which needed, were 7 and the time until the ignition was detected, are 31 seconds.
The lowest value of the auto ignition temperature is 280 °C. This value was determined using 7 drops test item. The test item showed auto ignition after 147 seconds.
The auto ignition temperature (result of determination) is the lowest value from the lowest values of the three experiments, rounded down to a whole multiple of 5 °C. Therefore, the auto ignition temperature is stated as 280 °C.
The three lowest values of the main test lay within a range of 5 K (as required for autoi gnition temperatures below 300 °C). The largest difference between measured ignition temperatures was 4 K.
Description of key information
EU Method A.15: the auto-ignition temperature of N-Butyldiethanolamine is stated as 280 °C.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 280 °C
Additional information
The auto ignition temperature was determined in three independent determinations according to EU Method A.15 in a GLP-study. A lowest value of the main test of 280 °C was found. Therefore, the auto-ignition temperature according to EU A.15 (rounded down to a whole multiple of 5 °C) of N-Butyldiethanolamine is stated as 280 °C.
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