3-methyl-1-isobutylbutyl acetate

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:

25 September 2018 to 26 October 2018

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:

2016

Deviations:

no

Qualifier:

according to guideline

Guideline:

DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)

Version / remarks:

2003

Deviations:

no

GLP compliance:

yes

Key result

Auto-ignition temperature:

365 °C

Atm. press.:

1 024 hPa

Preliminary Test

- The estimated auto-ignition temperature was 365 °C.

 

Main Study

- Ignition of the test material 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 material occurred was 369 °C. This temperature was rounded down to the nearest multiple of 5 °C giving an auto-ignition temperature of the test material of 365 °C.

Table 1: Auto-ignition Temperature of the TestMaterial

Test	Volume [μL]	Auto-ignition temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	70	375	3	Orange/blue	372
	150	372	3	Orange/blue
	230	379	3	Orange/blue
2	50	381	2	Orange/blue	374
	120	374	3	Orange/blue
	210	375	3	Orange/blue
3	60	372	3	Orange/blue	369
	100	369	3	Orange/blue
	220	378	3	Orange/blue

Conclusions:

Under the conditions of this study, the test material is auto-ignitable with an auto-ignition temperature of 365 °C. The atmospheric pressure was 1024 hPa.

Executive summary:

The auto ignition temperature of the test material was investigated in accordance with the standardised guidelines EU Method A.15 and DIN 51794, under GLP conditions.

Commercially available auto-ignition temperature apparatus was used for determination of the degree of auto-ignitability of the test material. The lowest temperature at which ignition of the test material occurred was 369 °C. This temperature was rounded down to the nearest multiple of 5 °C giving an auto-ignition temperature of the test material of 365 °C.

Under the conditions of this study, the test material is auto-ignitable with an auto-ignition temperature of 365 °C. The atmospheric pressure was 1024 hPa.

Description of key information

Under the conditions of this study, the test material is auto-ignitable with an auto-ignition temperature of 365 °C. The atmospheric pressure was 1024 hPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

365 °C

Additional information

The auto ignition temperature of the test material was investigated in accordance with the standardised guidelines EU Method A.15 and DIN 51794, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

Commercially available auto-ignition temperature apparatus was used for determination of the degree of auto-ignitability of the test material. The lowest temperature at which ignition of the test material occurred was 369 °C. This temperature was rounded down to the nearest multiple of 5 °C giving an auto-ignition temperature of the test material of 365 °C.

Under the conditions of this study, the test material is auto-ignitable with an auto-ignition temperature of 365 °C. The atmospheric pressure was 1024 hPa.