Reaction mass of 2,4-dimethyl-3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoinden-5-ol and 3,4-dimethyl-3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoinden-5-ol

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:

16 november 2016 - 18 november 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Version / remarks:

The determination was carried out using a procedure* designed to be compatible with Method A.15 Auto-Ignition Temperature (Liquids and Gases) of Commission Regulation (EC) No 440/2008 of 30 May 2008.
Apparatus: Carbolite flask heater

* Based on, Anon (1987), Electrical Apparatus for Explosive Gas Atmospheres. Part 4: Method of Test for Ignition Temperature. IEC Publications 79-4, P1-19.

GLP compliance:

yes (incl. QA statement)

Key result

Auto-ignition temperature:

286 °C

Atm. press.:

>= 101 - <= 102 kPa

 Performance of the Test

The test flask was heated in a flask heater. Aliquots of test item (tested as received) 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. Where clean flasks were not used, the flask was flushed with air between sample insertions.

 Evaluation of Data

The auto-ignition temperature is the lowest temperature that will result in the ignition of the test item after being injected into the test flask.

The room temperature and atmospheric pressure is recorded for each day of the test.

 Results

Results of the auto-ignition temperature determination are shown in the following table:

Table 1

Temperature (ºC)	Clean Flask (Yes/No)	Volume (µL)	Ignition Delay (s)	Observations
200	Yes	70	>300	No ignition, grey fumes emitted
250	Yes	70	>300	No ignition, grey fumes emitted
300	Yes	70	17	Orange flame, grey fumes emitted
290	No	70	>300	No ignition, grey fumes emitted
292	No	70	>300	No ignition, grey fumes emitted
294	No	70	21	Orange flame, grey fumes emitted
292	Yes	70	>300	No ignition, grey fumes emitted
292	Yes	200	>300	No ignition, grey fumes emitted
292	Yes	400	25	Orange flame, grey fumes emitted
290	Yes	400	>300	No ignition, grey fumes emitted
290	Yes	600	31	Orange flame, grey fumes emitted
288	Yes	600	30	Orange flame, grey fumes emitted
286	Yes	600	>300	No ignition, grey fumes emitted
286	Yes	800	38	Orange flame, grey fumes emitted
284	Yes	800	>300	No ignition, grey fumes emitted
284	Yes	1000	>300	No ignition, grey fumes emitted
284	Yes	1200	>300	No ignition, grey fumes emitted
284	Yes	1400	>300	No ignition, grey fumes emitted
284	Yes	1600	>300	No ignition, grey fumes emitted

Room temperature:               20°C
Atmospheric pressure:         101 to 102kPa
Observed result:                   286 °C

Conclusions:

The test item has been determined to have an auto-ignition temperature of 286 °C.

Executive summary:

The test item has been determined to have an auto-ignition temperature of 286 °C at an atmospheric pressure of 101 to 102 kPa according to a procedure designed to be compatible with Method A.15 Auto-Ignition Temperature (liquids and Gases).

Description of key information

The test item Dimeth Cyclormol has been determined to have an auto-ignition temperature of 286 °C at an atmospheric pressure of 101 to 102 kPa according to a procedure designed to be compatible with Method A.15 Auto-Ignition Temperature (liquids and Gases).

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

286 °C