Fatty acids, tall-oil, esters with ethylene glycol

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:

11 Apr - 23 Apr 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))

Auto-ignition temperature:

365 °C

Atm. press.:

1 013 hPa

Individual results
Preliminary Test
Temperature where auto-ignition was detected are marked with ‘+’; temperatures where no auto-ignition was detected are marked with ‘-‘ in the table below. The amount of test item tested at each measurement is indicated as numbers of portion (i.e. drops).

Table 1 – Auto-ignition temperature (preliminary test)

T [°C]	Portions	+/-	Time lag [s]
202	5	-	-
-52		-	-
302		-	-
352		-	-
402		+	2
372		-	-
392		+	2

Barometric pressure: 1001.4 hPa

The lowest auto-ignition temperature of the test item was determined to be 392 °C in the preliminary test.

Main test

The results of the main test are compiled in the table below.

Main test series	Auto-ignition temperature [°C]	Time lag [s]
1^stmain test (5 K)	373	4
1^stmain test (2 K)	371	6
2^ndmain test (2 K)	370	5
3^rdmain test (2 K)	370	5

The lowest auto-ignition temperature of the test item was determined to be 370 °C in the main test. Due to safety reasons and according to the guidelines, the lowest measured temperature at which an ignition was seen was rounded to the next number divisible by 5, giving a value of 365 °C.

Final Results
The auto-ignition temperature of the test item was found to be 365 °C.

Description of key information

365 °C at a pressure of 999.0 to 1025.8 hPa (EU Method A.15)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

365 °C