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Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
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))
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Deviations:
no
Principles of method if other than guideline:
In every ignition test, a small portion of the flammable substance under test was introduced into an open conical flask (Erlenmeyer flask'). The flask was heated in an electric furnace and it was observed whether ignition takes place at the prevailing temperature. Finally, any vaporizable components left in the flask were blown out with air. A repeat test was performed using fresh ignition vessels.
GLP compliance:
yes
Specific details on test material used for the study:
Batch number: 20140202
Content: 98.6 %
Physical condition: clear colorless liquid
Expiration date: 2030-12-09
Storage: Room temperature
Auto-ignition temperature:
175 °C
Atm. press.:
992 hPa
Remarks on result:
other: Due to significance of the ignition temperature for risk assessment, the result is not reported as the mean, but as the lowest value, where ignition occurs, rounded down to the next multiple of 5°C

An ignition was observed at a temperature of 190°C at a sample size of 15 drops (lowest value of first test run). Proceeding from this temperature, the lowest value in the main test run was found at 180°C. The lowest value in the repeat test was also found at 180°C. The barometric pressure was 992 hPa at the time of the test runs.

Conclusions:
The test to analyse auto-ignition temperature to 2,2,4 -Trimethyl-1 -oxa-4 -aza-2 -silacyclohexane showed a result of 175°C at 992 hPa.
Executive summary:

The test to analyse auto-ignition temperature to 2,2,4 -Trimethyl-1 -oxa-4 -aza-2 -silacyclohexane was performed as stipulated in EC Test Procedure A.15 (DIN 51794). An ignition was observed at a temperature of 190°C at a sample size of 15 drops (lowest value of first test run). Proceeding from this temperature, the lowest value in the main test run was found at 180°C. The lowest value in the repeat test was also found at 180°C. The barometric pressure was 992 hPa at the time of the test runs. Bearing in mind the significance of the ignition temperature for risk assessment, the result is not reported as the mean, but as the lowest value of 175°C, where ignition occurs, rounded down to the next multiple of 5°C.

Description of key information

The test to analyse auto-ignition temperature to 2,2,4 -Trimethyl-1 -oxa-4 -aza-2 -silacyclohexane was performed as stipulated in EC Test Procedure A.15 (DIN 51794). An ignition was observed at a temperature of 190°C at a sample size of 15 drops (lowest value of first test run). Proceeding from this temperature, the lowest value in the main test run was found at 180°C. The lowest value in the repeat test was also found at 180°C. The barometric pressure was 992 hPa at the time of the test runs. Bearing in mind the significance of the ignition temperature for risk assessment, the result is not reported as the mean, but as the lowest value of 175°C, where ignition occurs, rounded down to the next multiple of 5°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
175 °C

Additional information

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