Litsea cubeba, ext.

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

09/10/2014 - 13/10/2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study according to international guideline (EU Method A.15) under GLP. No deviations from guideline reported.

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: DIN 51794 (2003): Determination of Ignition Temperature

Deviations:

no

Principles of method if other than guideline:

Not relevant

GLP compliance:

yes (incl. QA statement)

Auto-ignition temperature:

265 °C

Atm. press.:

>= 994.4 - <= 1 004 hPa

Remarks on result:

other:

Preliminary test

An approximate value of the ignition temperature of the test item was firstly determined by the preliminary test. Table 1 gives the result of the preliminary test. An ignition is denoted as “+” and no ignition is denoted as “-“. 5 drops were put into the Erlenmeyer flask at each temperature.

Table1: Results of the preliminary test

	Preliminary test
Temperature / °C	298	279	254	260	270
Ignition / +/-	+	+	-	-	+
	Atmospheric pressure: 995.3 - 1004.0 hPa

Atmospheric pressure: 995.3 hPa

Main Test

The results of the main test are given in the following Tables 2 and 3. An ignition is denoted as “+” and no ignition is denoted as “-“.

Table 2:    Determination of the first main test series

1^stMain test series
Temperature / °C	Droplets	Ignition
268^1)	10	+
262	10	-
262	9	-
261	8	-
262	7	-
262	6	-
261	5	-
261	4	-
261	3	-
261	2	-
262	1	-
^1)Atmospheric pressure: 1004.0 hPa Atmospheric pressure: 994.4 hPa

Table 3:    Determination of second and third main test series

2^ndMain test series			3^rdMain test series
Temperature / °C	Droplets	Ignition	Temperature / °C	Droplets	Ignition
268	10	+	268	10	+
261	10	-	262	10	-
262	9	-	261	9	-
261	8	-	261	8	-
261	7	-	261	7	-
261	6	-	262	6	-
262	5	-	263	5	-
262	4	-	262	4	-
262	3	-	261	3	-
262	2	-	262	2	-
262	1	-	261	1	-
Atmospheric pressure: 996.1 hPa			Atmospheric pressure: 995.5 hPa

The lowest temperatures at which an ignition occurred in the main test are given in Table 4.

Table 4:         Lowest temperatures at which an ignition occurred

Main test series	Lowest temperatures of an ignition	Highest temperatures without an ignition	Atmospheric Pressure
1	268 °C	262 °C	994.4 - 1004.0 hPa
2	268 °C	262 °C	996.1 hPa
3	268 °C	263 °C	995.5 hPa

Conclusions:

Litsea Cubeba Oil has an auto-ignition temperature of 265 °C (measured at an atmospheric pressure from 994.4 to 1004.0 hPa).

Executive summary:

The auto-ignition temperature of Litsea cubeba oil was investigated according to EU Method A15 using a cylindrical resistance furnace. The auto-ignition temperature was found to be 265°C measured at an atmospheric pressure from 994.4 to 1004.0 hPa.

Description of key information

The auto-ignition temperature of Litsea cubeba oil was investigated according to EU Method A15 using a cylindrical resistance furnace. The auto-ignition temperature was found to be 265°C measured at an atmospheric pressure from 994.4 to 1004.0 hPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

265 °C