2-methyl-4-phenyl-1,3-dioxolane

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:

27-Nov-2015 to 01-Dec-2015

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:

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

Qualifier:

according to guideline

Guideline:

other: DIN EN 14522 (2005): Determination of the Ignition Temperature of gases and liquids

GLP compliance:

no

Key result

Auto-ignition temperature:

400 °C

Atm. press.:

1 008 hPa

Results

Preliminary test

An approximate value of the ignition temperature of the test item was first determined in a preliminary test. Results are given in the table below. An “ignition” is indicated by + and “no ignition” by -. Five drops were added into the Erlenmeyer flask at each temperature.

 

Results of the preliminary test  

Preliminary Test
Temperature / °C	Ignition / +/-
240	-
262	-
282	-
302	-
322	-
341	-
371	-
400	-
429	+
420	+
408	-
Atmospheric pressure: 1008.4 hPa

 

In the preliminary test, the lowest temperature at which an ignition occurred was 420 °C.

 

Main test

The results of the three test series are given in the following tables. An “ignition” is indicated by + and “no ignition” by -.

 

Results of first and second main test series using the fully automated apparatus ZT2

1st Main test series			2nd Main test series
Temperature / °C	Drops	Ignition / +/-	Temperature / °C	Drops	Ignition / +/-
412	4	+	399	8	-
411	4	+	398	9	-
409	4	+	399	10	-
407	4	-	407	3	-
406	3	+	406	2	-
404	3	+	406	1	-
403	3	+	407	4	-
401	3	+	407	5	-
398	3	-	406	6	-
398	2	-	407	7	-
398	1	-	406	8	-
399	4	-	406	9	-
398	5	-	406	10	-
398	6	-	408	3	+
398	7	-
Atmospheric pressure: 1008.0 hPa

 

Results of third main test series using the semi automated apparatus ZT3

3rd Main test series
Temperature / °C	Drops	Ignition / +/-
406	10	-
412	10	-
410	3	+
407	3	+
406	3	-
405	10	-
404	9	-
405	8	-
405	7	-
406	6	-
405	5	-
404	4	-
404	2	-
404	1	-
Atmospheric pressure: 1009.6 – 1009.7 hPa

The lowest temperatures at which an ignition occurred in the main tests are given in the following table.

Results of third test series

Main test series	Lowest temperatures of an ignition	Highest temperatures without an ignition	Atmospheric Pressure
1	401 °C	398 °C	1008.0 hPa
2	408 °C	407 °C	1008.0 hPa
3	407 °C	406 °C	1009.6 - 1009.7 hPa

 

Based on the results of the main test series, the lowest auto-ignition temperature was 401 °C.

Regulation EC No. 440/2008 and DIN 51794: The auto-ignition temperature rounded down to the nearest multiple of 5 °C was determined as 400 °C.

 

Final results

The test item has an auto-ignition temperature of 400 °C according to Regulation EC No. 440/2008 Method A.15. Auto-Ignition Temperature (Liquids and Gases) and DIN 51794 (2003): Determination of Ignition Temperature.

Conclusions:

An auto-ignition temperature value of 400 °C (at 1008.0 hPa) was determined for the test substance according to E.U. Method A.15.

Description of key information

Auto-ignition temperature: 400 °C at 1008.0 hPa (EU Method A.15)

Additional information

An auto-ignition temperature value of 400 °C (at 1008.0 hPa) was determined for the test substance according to E.U. Method A.15.