N,N-bis(2-hydroxyethyl)dodecanamide

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:

18 June 2012 to 20 August 2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study was well conducted in accordance with the EU A.15, DIN Guide 51794 and IEC standard 79-4 guidelines as well as in compliance with GLP.

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: Deutsches Institut für Normung (DIN), DIN Guide 51794: "Determining the Ignition Temperature of Petroleum Products", May 2003.

Deviations:

not specified

Qualifier:

according to guideline

Guideline:

other: International Electrotechnical Commission (IEC), IEC standard 79-4: "Electrical Apparatus for Explosive Gas Atmospheres, Part 4, Method of Test for Ignition Temperature", 1975.

Deviations:

not specified

GLP compliance:

yes

Remarks:

OECD GLP

Auto-ignition temperature:

350

Atm. press.:

1 010.7 - 1 017.2 hPa

Remarks on result:

other: th test substance is auto-ignitable

Result details:

Preliminary study:

The estimated auto-ignition temperature was 380°C.

Main study:

The results of the main study on the determination of the auto-ignition temperature of the test substance are given in the below Table.

 

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 substance occurred was 350°C. This temperature was a multiple of 5°C and therefore given as the auto-ignition temperature of the test substance.

Test	Volume [μL]	Auto-ignition temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	70	378	15	orange/blue	350
	150	366	13	orange
	250	353	17	orange
	400	350	22	orange
	700	360	28	orange
2	100	369	17	orange	352
	375	352	27	orange
	650	360	19	orange
3	125	372	15	orange	353
	425	353	24	orange
	600	360	12	orange

Conclusions:

Under the conditions of the study, the test substance was determined to be auto-ignitable with an auto-ignition temperature of 350°C at 1010.7 – 1017.2 hPa.

Executive summary:

A study was conducted to determine the auto-ignition temperature of the test substance amides, C12, N,N-bis(2-hydroxyethyl) according to EU A.15, DIN Guide 51794 and IEC standard 79-4 guidelines. Under the conditions of the study, the test substance was determined to be auto-ignitable with an auto-ignition temperature of 350°C at 1010.7 – 1017.2 hPa.

Description of key information

The auto-ignition temperature was determined according to EU Method A.15, DIN Guideline 51794 and IEC Guideline 79-4 (Baltussen, 2012). 

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

350 °C