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Physical & Chemical properties

Auto flammability

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Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
August 17th, 2011 - August 22th, 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
According to EU method A.15
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
GLP compliance:
no
Auto-ignition temperature:
215 °C
Atm. press.:
1 006 hPa
Remarks on result:
other: The pressure given is the mean from three determinations (see below).

Auto-flammability (Determination of the Temperature of Self-ignition of Volatile Liquids and Gases)

Preliminary test:The lowest auto-ignition temperature was determined to be 217 °C.

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

 

1. principal test

T / °C

drops

+ / -

217

5

+

212

5

-

212

10

-

212

1

-

212

8

-

212

2

-

212

7

-

212

3

-

212

6

-

212

4

-

212

9

-

212

11

-

barometric pressure: 1006.2 hPa

 

2. principal test

3. principal test

T / °C

drops

+ / -

T / °C

 

drops

+ / -

 

217

5

+

217

5

+

212

5

-

212

5

-

212

10

-

212

10

-

212

1

-

212

1

-

212

8

-

212

8

-

212

2

-

212

2

-

212

7

-

212

7

-

212

3

-

212

3

-

212

6

-

212

6

-

212

4

-

212

4

-

212

9

-

212

9

-

212

11

-

212

11

-

barometric pressure: 1003.6 hPa

barometric pressure: 1008.8 hPa

The auto-ignition temperature of the test item is 215°C.

Conclusions:
The auto-ignition temperature of the test item is 215°C.
Executive summary:

The self-ignition temperature of the test item according to the auto-flammability in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.15. is 215 °C.

Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 25/3/2010 to 29/7/2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
According to EU method A.15, DIN method 51794 and IEC standard 79-4
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
Qualifier:
according to guideline
Guideline:
other: IEC standard 79-4
GLP compliance:
yes (incl. QA statement)
Auto-ignition temperature:
215 °C
Atm. press.:
>= 1 003.7 - <= 1 023.5 hPa
Remarks on result:
other:

The estimated auto-ignition temperature in the preliminary study was 235°C.

Main study - auto-ignition temperature of the test susbtance

 Test  Volume (µL)  Auto-ignition temperature (ºC)  Ignition delay (s)  Colour of the flame  Minimum auto-ignition temperature (ºC)
 1  70  232  17  orange / blue  215
   100  227  25  orange / blue  
   175  215  20  orange / blue  
   200  219  30  orange / blue  
 2  125  220  18  orange / blue  216
   250  216  31  orange / blue  
   300  218  17  orange / blue  
 3  50  229  15  orange / blue  219
   80  219  18  orange / blue  
   150  222 24   orange / blue  

Ignition of the test substance within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 10°C. According to the guidelines, no further testing was required.

The lowest temperature at which ignition of the test substance occurred was 215°C, which is also the auto-ignition temperature if rounded down to the nearest 5°C.

Conclusions:
The test substance is auto-ignitable with an auto-ignition with an auto-ignition temperature of 215ºC.
Executive summary:

The test was performanced according to EU method A.15, DIN method 51794 and IEC standard 79-4. A commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of the substance. The test substance is auto-ignitable with an auto-ignition temperature 215ºC.

Description of key information

Auto-ignition temperature: 215 °C

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
215 °C

Additional information

The auto-ignition temperature of C10-DMA was determined in two reliable guideline studies, yielding identical results:
The study by NOTOX (2010) was performed according to EU method A.15, DIN method 51794 and IEC standard 79-4. A commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of the substance. The test substance is auto-ignitable with an auto-ignition temperature of 215 °C.
Siemens (2011) performed the study on the auto-ignition temperature of C10-DMA according to the European Commission Regulation (EC) No. 440/2008, Method A.15. A value of 215 °C was determined for the auto-ignition temperature.