α-methyl-1,3-benzodioxole-5-propionaldehyde

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

22 December to 16 January 2013

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

GLP compliance:

yes (incl. QA statement)

Key result

Auto-ignition temperature:

364 °C

Atm. press.:

100.9 - 101.1 kPa

Remarks on result:

other: 364 ± 5 °C

Table 1: Summary of Results

Test Temperature (°C)	Test Volume (µL)	Ignition Delay (s)	Observations
200 (clean flask)	70	>300	No ignition. Grey fumes were emitted.
250 (clean flask)	70	>300	No ignition. Grey fumes were emitted.
300 (clean flask)	70	>300	No ignition. Grey fumes were emitted.
350	70	>300	No ignition. Grey fumes were emitted.
400	70	1	An orange flame. Grey fumes were emitted.
380	70	2	An orange flame. Grey fumes were emitted.
370	70	4	An orange flame. Grey fumes were emitted.
360	70	>300	No ignition. Grey fumes were emitted.
364	70	4	An orange flame. Grey fumes were emitted.
362 (clean flask)	70	>300	No ignition. Grey fumes were emitted.
362 (clean flask)	200	>300	No ignition. Grey fumes were emitted.
362 (clean flask)	400	>300	No ignition. Grey fumes were emitted.
362 (clean flask)	600	>300	No ignition. Grey fumes were emitted.
362 (clean flask)	800	>300	No ignition. Grey fumes were emitted.
362 (clean flask)	1000	>300	No ignition. Grey fumes were emitted.

Room temperature: 19 to 20 °C

Atmospheric pressure: 100.9 to 101.1 kPa

Conclusions:

Under the conditions of this study, the test material was determined to have an auto-ignition temperature of 364 ± 5 °C at 100.9 to 101.1 kPa.

Executive summary:

The auto ignition temperature of the test material was investigated in accordance with the standardised guideline EU Method A.15 under GLP conditions.

The test flask was heated in a flask heater. Aliquots of the test material (as received) between 70 and 1000 µL were injected into the flask using a syringe and the flask was observed for signs of ignition over a 300 second period. This procedure was repeated, varying the sample size as necessary, until the lowest temperature at which ignition, if any, occurred within 300 seconds of insertion, was determined.

Under the conditions of this study, the test material was determined to have an auto-ignition temperature of 364 ± 5 °C at 100.9 to 101.1 kPa.

Description of key information

The test material was determined to have an auto-ignition temperature of 364 ± 5 °C at 100.9 to 101.1 kPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

364 °C

Additional information

The auto ignition temperature of the test material was investigated in accordance with the standardised guideline EU Method A.15 under GLP conditions. The study was assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al. (1997).

The test flask was heated in a flask heater. Aliquots of the test material (as received) between 70 and 1000 µL were injected into the flask using a syringe and the flask was observed for signs of ignition over a 300 second period. This procedure was repeated, varying the sample size as necessary, until the lowest temperature at which ignition, if any, occurred within 300 seconds of insertion, was determined.

Under the conditions of this study, the test material was determined to have an auto-ignition temperature of 364 ± 5 °C at 100.9 to 101.1 kPa.