1-methoxy-4-[3-methyl-4-(2-phenylethoxy)but-3-en-1-yl]benzene

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:

04-02-2021 to 26-03-2021

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Guideline study performed under GLP. All relevant validity criteria were met.

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

GLP compliance:

yes

Auto-ignition temperature:

415 °C

Atm. press.:

1 011 hPa

Remarks on result:

preliminary test

Key result

Auto-ignition temperature:

400 °C

Atm. press.:

>= 1 011 - <= 1 023 hPa

Remarks on result:

other: Definitive Test (minimum auto-ignition temperature) in triplicate

Preliminary test

The estimated auto-ignition temperature was 415°C.

 

Main study

Ignition of the test substance within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 20°C. According to the guidelines, no further testing was required. The lowest temperature at which ignition of the test substance occurred was 402°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 400°C.

 

Table 1. Auto-ignition of the test item

Test	Volume     [μL]	Auto-ignition temperature   [°C]	Ignition delay     [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	70	412	17	Yellow/blue	402
	150	405	17	Yellow/ orange
	300	402	12	Yellow/ orange
	600	405	13	Yellow/ orange
2	100	412	19	Yellow/blue	405
	400	405	13	Yellow/ orange
	600	408	13	Yellow/ orange
3	125	409	14	Yellow/ orange	404
	250	404	19	Yellow/ orange
	475	407	11	Yellow/ orange

Conclusions:

The auto-ignition temperature of the test item was determined to be 400 °C at 1011 and 1023 hPa.

Executive summary:

The auto-ignition temperature was determined using EU Method A.15 under GLP. The auto-ignition temperature is the lowest temperature at which the test item will ignite when mixed with air under the conditions defined in the test method. Ignition of the test item within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 10°C. According to the guidelines, no further testing was required. The lowest temperature at which ignition of the test item occurred was 243°C. This temperature was rounded to the lowest multiple of 5°C and therefore 240°C was given as the auto-ignition temperature of the test item. Under the conditions of the study, the auto-ignition temperature was determined to be 240°C at 997 and 1011 hPa.

Description of key information

Auto-ignition temperature: 400 °C at ca. 1 atmosphere, EU Method A.15, 2021

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

400 °C

Additional information

Key study : EU Method A.15, 2021 : The auto-ignition temperature was determined using EU Method A.15 under GLP. The auto-ignition temperature is the lowest temperature at which the test item will ignite when mixed with air under the conditions defined in the test method. Ignition of the test item within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 20°C. According to the guidelines, no further testing was required. The lowest temperature at which ignition of the test item occurred was 402°C. This temperature was rounded to the lowest multiple of 5°C and therefore 400°C was given as the auto-ignition temperature of the test item. Under the conditions of the study, the auto-ignition temperature was determined to be 400°C at 1011 and 1023 hPa.