4,8-Cyclododecadien-1-one

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17-01-2014 to 06-02-2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: 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:

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

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

inspected: January 2013; signature: March 2013

Auto-ignition temperature:

260 °C

Atm. press.:

>= 991.6 - <= 1 001.2 hPa

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.

 

Table 1: Results of the preliminary test

Temperature / °C	213	265	324	309
Ignition / +/-	-	-	+	+

Atmospheric pressure: 991.6 hPa

In the preliminary test, the lowest temperature at which an ignition occurred was 309°C.

 

Definitive Test

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

 Table 2: Determination of the first main test series

1^stTest Series			1^stTest Series (continued)
Temperature / °C	Droplets	Ignition / +/-	Temperature / °C	Droplets	Ignition / +/-
279	5	+	259	9	-
274	5	+	259	8	-
269	4	-	259	7	-
269	5	-	259	6	-
269	7	+	259	5	-
264	7	-	259	4	-
264	5	-	259	3	-
264	10	+	259	2	-
259	10	-	259	1	-
Atmospheric pressure		991.6 hPa	Atmospheric pressure		991.6 hPa

 

Table3: Determination of second and third test series

2^ndTest Series			3^rdTest Series
Temperature / °C	Droplets	Ignition / +/-	Temperature / °C	Droplets	Ignition / +/-
267	10	+	269	10	+
262	10	-	264	10	-
262	9	-	264	9	+
262	8	-	259	10	-
262	7	-	258	9	-
262	6	-	258	8	-
262	5	-	258	7	-
261	4	-	257	6	-
261	3	-	257	5	-
261	2	-	257	4	-
261	1	-	257	3	-
			257	2	-
			258	1	-
Atmospheric pressure		1001.2 hPa	Atmospheric pressure		995.0 hPa

 

Table 4: Lowest temperatures at which an ignition occurred

Test Series	Lowest Ignition Temperature / °C	Highest Temperature without Ignition / °C	Atmospheric pressure / hPa
1	264	259	991.6
2	267	262	1001.2
3	264	259	995.0

According to observations in the test series, the auto-ignition temperature rounded down with an accuracy of 5 °C was determined to be 260 °C.

Conclusions:

The auto-ignition temperature was determined to be 260 ± 5 °C at 99.16 to 100.12 kPa atmospheric pressure.

Executive summary:

The auto-ignition temperature was determined using EU Method A.15 and DIN 51794 (2003). 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. Atmospheric pressure was 99.16 to 100.12 kPa during the course of the study. The auto-ignition temperature was determined to be 260 ± 5 °C.

Description of key information

Auto-ignition temperature: 260 ± 5 °C at 1 atmosphere, EU Method A.15, 2014

Additional information

The auto-ignition temperature was determined using EU Method A.15 and DIN 51794 (2003). 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. Atmospheric pressure was 99.16 to 100.12 kPa during the course of the study. The auto-ignition temperature was determined to be 260 ± 5 °C.