Reaction products of 2-hydroxyethyl methacrylate and diphosphorous pentoxide and water

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:

20-02-2018 to 26-07-2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

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:

DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)

Deviations:

no

GLP compliance:

yes

Auto-ignition temperature:

345 °C

Atm. press.:

1 013 hPa

Remarks on result:

preliminary test

Auto-ignition temperature:

335 °C

Atm. press.:

>= 1 013 - <= 1 020 hPa

Remarks on result:

other: Definitive Test (minimum auto-ignition temperature) in triplicate

Preliminary test

The estimated auto-ignition temperature was 345°C.

 

Main study

Ignition of the test item 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 < 20°C. According to the guidelines, no further testing was required. The lowest temperature at which ignition of the test item occurred was 336°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 335°C.

 

Table 1.0 - Auto-ignition of the test item

Test	Volume [μL]	Auto-ignition temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	50	356	8	orange/green	347
	70	347	9
	150	354	11
2	60	355	7	orange/green	336
	100	336	13
	200	359	9
	300	365	10
3	80	356	7	orange/green	345
	150	345	11
	220	362	6

Conclusions:

The auto-ignition temperature of the test item was determined to be 335°C at between 1013 and 1020 hPa.

Executive summary:

The auto-ignition temperature was determined using EU Method A.15 and DIN 51794 under GLP. 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. 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 < 20°C. According to the guidelines, no further testing was required The lowest temperature at which ignition of the test item occurred was 336°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 335°C. Under the conditions of the study, the auto-ignition temperature was determined to be 335°C at between 1013 and 1020 hPa.

Description of key information

Auto-ignition temperature: 335 °C at ca. 1 atmosphere, EU Method A.15, 2018

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

335 °C

Additional information

Key study : EU Method A.15, 2018 : The auto-ignition temperature was determined using EU Method A.15 and DIN 51794 under GLP. 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. 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 < 20°C. According to the guidelines, no further testing was required The lowest temperature at which ignition of the test item occurred was 336°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 335°C. Under the conditions of the study, the auto-ignition temperature was determined to be 335°C at between 1013 and 1020 hPa.