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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
Study period:
2003-04-25 to 2004-05-28
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
ASTM E659 (Standard test method for autoignition temperature of liquid chemicals)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Key result
Auto-ignition temperature:
500 °C
Atm. press.:
1 023 hPa
Remarks on result:
other: +/- 3°C

Hot flame autoignition temperature (AIT, °C): 500

Time lag to auto-ignition (seconds): 21

Barometric pressure (kPa): 102.3

Sample quantity (µL): 100

Cool Flame Observed down to (CFT °C): N/A

Reaction threshold temperature (RTT °C): 460

Reaction threshold temperature rise (RTT °C): 2

Ignitions produced an orange flame and black smoke. No cool flames were observed

Conclusions:
Auto-ignition temperature (ASTM E659-78): 500 +/- 3°C (1023 hPa)
Executive summary:

The auto-ignition temperatue was determined for 1-chloro-2,3-dimethylbenzene according to ASTM E659-78 compliant with GLP.

The test item (approx. 100 µL) was placed in a heated 0.5-L flask, and the flask was observed in the dark. This procedure was repeated, varying the temperature, and the lowest temperature that the test item was observed to ignite was the autoignition temperature. The "ignition delay time", the time between addition of test item to the flask and ignition, was also recorded.

Results obtained:

Auto-ignition temperature: 500 +/- 3 °C at 1023 hPa;

Ignition delay time: 21 seconds.

Description of key information

Auto-ignition temperature (ASTM E659-78): 500 +/- 3°C (1023 hPa)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
500 °C

Additional information

The auto-ignition temperature was determined for 1-chloro-2,3-dimethylbenzene according to ASTM E659-78 compliant with GLP.

The test item (approx. 100 µL) was placed in a heated 0.5-L flask, and the flask was observed in the dark. This procedure was repeated, varying the temperature, and the lowest temperature that the test item was observed to ignite was the autoignition temperature. The "ignition delay time", the time between addition of test item to the flask and ignition, was also recorded.

Results obtained:

Auto-ignition temperature: 500 +/- 3 °C at 1023 hPa;

Ignition delay time: 21 seconds.