2-Propenoic acid, 2-methyl-, C6-12-alkyl esters

Auto flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Qualifier:

according to guideline

Guideline:

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

GLP compliance:

yes (incl. QA statement)

Auto-ignition temperature:

250 °C

Atm. press.:

1 010 - 1 013 hPa

Remarks on result:

other:

Preliminary test: The lowest self-ignition temperature was determined to be 258 ^oC.

Main test: The following table shows the results of the three principal tests. Temperatures, where self-ignition (+) was detected and where not (-). The amount of test item tested at each measurement is indicated as numbers of drops.

1. Principal test			1. Principal test (continued)			2. Principal test
Barometric pressure at 1013.3 hPa			Barometric pressure at 1012.3 hPa			Barometric pressure at 1010.8 hPa
T/^oC	drops	+/-	T/^oC	drops	+/-	T/^oC	drops	+/-
258	5	+	248	3	-	253	5	+
253	5	-	248	4	-	248	8	-
253	10	-	248	5	-	248	9	-
253	2	-	248	6	-	248	10	-
253	3	-	248	8	-	248	4	-
253	8	+	248	9	-	248	3	-
248	8	-				248	7	-
248	7	-				248	2	-
248	9	-				248	1	-
248	10	-				248	5	-
248	2	-				248	6	-
248	1	-				248	8	-

3. Principal test
Barometric pressure at 1011.0  hPa
T/^oC	drops	+/-
253	8	+
248	8	-
248	9	-
248	7	-
248	10	-
248	6	-
248	5	-
248	7	-
248	1	-
248	2	-
248	3	-
248	4	-
248	8	-

The self-ignition temperature of the test item is 250 ^oC.

Conclusions:

In a valid guideline study the self-ignition temperature of the test item is 250 °C.

Executive summary:

In a valid guideline study the self-ignition temperature of the test item is 250 °C.

Reference 2

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

06-Oct-2008

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: According to generally accepted laboratory method (DIN EN ISO/IEC 17025, DIN 51 794), no-GLP.

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

DIN 51794

Deviations:

no

Principles of method if other than guideline:

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. The test method determines the minimum temperature of the inner surface of an enclosure that will result in ignition of gas, vapour or liquid injected into the enclosure.

GLP compliance:

no

Auto-ignition temperature:

295 °C

Atm. press.:

1 003 hPa

Remarks on result:

other:

Lowest value of the initial experiment: 75 - 650 °C

Lowest value of the main experiment:  303   °C

Lowest value of the 1st repeat:           300   °C

Lowest value of the 2nd repeat:         285   °C

Autoignition temperature:              295       °C *

* The autoignition temperature (result of all measurements) is lowest of all low values, rounded down to a multitude of 5 °C.

Conclusions:

The auto- ignition temperature was determined to be 295 °C at 1003 hPa according to DIN 51794.

Executive summary:

The auto- ignition temperature was determined to be 295 °C at 1003 hPa according to DIN 51794.

Reference 3

Endpoint:

auto-flammability

Type of information:

migrated information: read-across based on grouping of substances (category approach)

Adequacy of study:

key study

Study period:

02-Oct-2008

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: According to generally accepted laboratory method (DIN EN ISO/IEC 17025, DIN 51 794), no-GLP.

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

DIN 51794

Deviations:

no

Principles of method if other than guideline:

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. The test method determines the minimum temperature of the inner surface of an enclosure that will result in ignition of gas, vapour or liquid injected into the enclosure.

GLP compliance:

no

Auto-ignition temperature:

240 °C

Atm. press.:

994 hPa

Remarks on result:

other:

Lowest value of the initial experiment: 75 - 650 °C

Lowest value of the main experiment:  241   °C

Lowest value of the 1st repeat:           245   °C

Lowest value of the 2nd repeat:         245   °C

Autoignition temperature:              240       °C *

* The autoignition temperature (result of all measurements) is lowest of all low values, rounded down to a multitude of 5 °C.

Conclusions:

The auto- ignition temperature was determined to be 240 °C at 994 hPa according to DIN 51794.

Executive summary:

The auto- ignition temperature was determined to be 240 °C at 994 hPa according to DIN 51794.

Description of key information

Read across to the individual substance i-Decyl methacrylate (i-DMA) of NUMA UVCB substance and structural analogue substances of NUMA 2 -Ethylhexyl methacrylate (2 -EHMA) and UVCB substance (C12 -C16 methacrylate):

2 -Ethylhexyl methacrylate: Auto flammability: 250 °C at 1013 hPa, EU Method A.15, experimental data (Smeykal H (2008))

i-Decyl methacrylate: Auto flammability: 295 °C at 1013 hPa, DIN 51794 equal to EU Method A.15, experimental data (Rediske N (2008))

C12 - C16 methacrylate: Auto flammability: 240 °C at 994 hPa, DIN 51794 equal to EU Method A.15, experimental data (Rediske N (2008))

In analogy of the related substance Isodecyl methacrylate the auto ignition temperature of NUMA UVCB substance is approximately 295 °C at normal pressure.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

295 °C

Additional information

In analogy of the related substance Isodecyl methacrylate the auto ignition temperature of NUMA UVCB substance is approximately 295 °C at normal pressure.