2-tert-butyl-1,4-dimethoxybenzene

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:

2018-06-22

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:

Commission Regulation (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), Method A.15, Official Journal of the European Union L 142 of 31 May 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Name: 2-tert-butyl-1,4-dimethoxybenzene
Other name: Vetimoss
CAS number: 21112-37-8
Batch/Lot number: A180118C
Appearance: Clear, pale yellow liquid
Purity: 99.78%
Expiry date: 06 June 2019
Storage: Controlled room temperature (15-25°C, below 70 RH%), under inert gas, protected from humidity

Key result

Auto-ignition temperature:

396 °C

Atm. press.:

97.9 kPa

Temperature was measured in case of each experiment at the outside and inside of the flask. The temperature distribution was steady outside the flask. The ignition delay time was determined when ignition was observed.

The test was carried out at 97.9 kPa atmospheric pressure. The measured auto-ignition temperature of the test item was 396°C.

Determination of auto-ignition temperature of test item

Temperature (flask inside)	External Temperature	Ignition	Sample amount	Ignition delay time
231°C	236°C	-	100 µL	-
280°C	287°C	-	100 µL	-
329°C	337°C	-	100 µL	-
377°C	385°C	-	100 µL	-
399°C	408°C	+	100 µL	19 sec
387°C	396°C	-	100 µL	-
392°C	401°C	-	100 µL	-
396°C	405°C	-	100 µL	-
400°C	409°C	+	200 µL	13 sec
396°C	405°C	+	200 µL	16 sec
393°C	401°C	-	200 µL	-

-         - not ignited

-         + ignited

Conclusions:

The measured auto-ignition temperature of the test item was 396°C.

Executive summary:

The autoignition temperature of Vetimoss was measured according to EU method A.15. The measured auto-ignition temperature of the test item was 396°C.

Description of key information

The autoignition temperature of Vetimoss was measured according to EU method A.15. The measured auto-ignition temperature of the test item was 396°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

396 °C