4,4'-Methylenediphenyl diisocyanate, oligomers

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:

Start date of the experimental work: 12 June 2009 and Completion date of the experimental work: 02 July 2009.

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Auto-ignition temperature:

> 464 °C

Atm. press.:

ca. 101.9 kPa

Remarks on result:

other:

Remarks:

No cool flames were observed. Ignition produced clean burning. An exothermic reaction of 3°C magnitude was detected at 464 °C, but no ignition observed

Full test results:

Inner Flask Temp (°C)	Volume of liquid (microliter)	Clean Flask ? yes (y) / No (n)	Ignition yes (y) / No (n)	Time lag (s)	Comments
600	100	y	y	3	medium flame
570	100	y	y	4	Small flame
540	100	y	n	-	-
555	100	y	n	-	-
563	100	y	n	-	-
567	100	y	y	4	Medium flame
564	100	y	n	-	-
564	150	y	n	-	-
564	200	y	n	-	-
564	250	y	n	-	-
564	300	y	n	-	-
564	500	y	n	-	-
564	70	y	n	-	-
544	100	y	n	-	3°C Rise
524	100	y	n	-	3°C Rise
484	100	y	n	-	2°C Rise
444	100	y	n	-	0°C Rise
464	100	y	n	-	3°C Rise
454	100	y	n	-	1°C Rise

No cool flames were observed. Ignition produced clean burning. An exothermic reaction of 3°C magnitude was detected at 464 °C, but no ignition observed.

Conclusions:

No cool flames were observed. Ignition produced clean burning. An exothermic reaction of 3°C magnitude was detected at 464 °C, but no ignition observed.

Description of key information

No cool flames were observed. Ignition produced clean burning. An exothermic reaction of 3°C magnitude was detected at 464 °C, but no ignition observed.