N-Phenyl-diethanolamine, reaction products with formaldehyde

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:

30 March 2020 to 29 April 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

2003

Deviations:

no

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

2016

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Date of Inspection: 10-17 December 2019; Date of Signature on Certificate: 24 February 2020

Key result

Auto-ignition temperature:

400 °C

Atm. press.:

1 017 hPa

Preliminary Test

The estimated auto-ignition temperature was 410°C.

 

Main Study

The results of the main study on the determination of the auto-ignition temperature of the test item are given in Table 1.

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 400°C. This temperature was a multiple of 5°C and therefore given as the auto-ignition temperature of the test item.

Table 1          
Auto-ignition Temperature of the Test Item

Test	Volume [μL]	Auto-ignition temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	70	416	10	orange/blue	405
	150	405	10	orange/blue
	250	406	5	orange/blue
2	125	409	11	orange/blue	400
	350	400	10	orange/blue
	450	407	8	orange/blue
3	100	416	9	orange/blue	401
	200	401	9	orange/blue
	400	406	10	orange/blue

Conclusions:

The test item is auto-ignitable with an auto-ignition temperature of 400°C

Executive summary:

Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of the test item.

The test item is auto-ignitable with an auto-ignition temperature of 400°C.

The atmospheric pressure was 1017 hPa.

Description of key information

400°C; EC A.15; Jovic Madzarevic, Z. (2020)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

400 °C