Reaction mass of [2,2,4-trimethyl-1-(2-methylpropanoyloxy)pentan-3-yl] benzoate and [2,2,4-trimethyl-3-(2-methylpropanoyloxy)pentyl] 2-methylpropanoate and (3-benzoyloxy-2,2,4-trimethylpentyl) benzoate

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:

12 Sep 2018 - 26 Oct 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))

Qualifier:

according to guideline

Guideline:

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

GLP compliance:

yes

Specific details on test material used for the study:

Batch (Lot) Number: V046812101
Expiry date: 26 April 2019 (expiry date)
Physical Description: Clear colourless liquid
Purity/Composition: See Certificate of Analysis
Storage Conditions: At room temperature

Key result

Auto-ignition temperature:

430 °C

Atm. press.:

> 1 011 - < 1 015 hPa

The results of the main study on the determination of the auto-ignition temperature of the test item are given in Table 5.

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 431°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 430°C.

Table 5 Auto-ignition Temperature 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	437	19	Orange/blue	432
	150	432	20	Orange/blue
	230	433	15	Orange/blue
2	50	446	17	Orange/blue	431
	125	431	23	Orange/blue
	220	432	19	Orange/blue
3	60	441	21	Orange/blue	432
	135	432	20	Orange/blue
	240	435	17	Orange/blue

Conclusions:

The test item is auto-ignitable with an auto-ignition temperature of 430°C.

Executive summary:

Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of the test substance.

The test item is auto-ignitable with an auto-ignition temperature of 430°C.

The atmospheric pressure was between 1011 and 1015 hPa.

Description of key information

The auto-ignition temperature (EC A.15) of Reaction Mass of 1-isopropyl-2,2 dimethyltrimethylene diisobutyrate and 3-benzoyloxy-2,2,4-trimethyl pentyl isobutyrate and 2,2,4-trimethylpentane-1,3-diyl dibenzoate was 430°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

430 °C

Additional information

Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of the test item.

The test item is auto-ignitable with an auto-ignition temperature of 430°C.

The atmospheric pressure was between 1011 and 1015 hPa.