Bis(2-ethylhexyl) 2-(4-hydroxy-3,5-dimethoxybenzylidene)malonate

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

26.10.2004-28.10.2004

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))

GLP compliance:

yes

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: PR/MPA-4/50
- Purity: 97.8%

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: 15°C – 25°C in a tight, light resistant container protected from moisture

Auto-ignition temperature:

300 °C

Atm. press.:

ca. 1 000 hPa

Remarks on result:

other:

Preliminary test

The lowest self-ignition temperature was determined to be 305 °C.

 

1. principal test			2. principal test
T (°C)	Drops	+/-	T (°C)	Drops	+/-
315	5	+	305	5	+
310	5	+	300	5	-
305	5	+	300	7	-
300	5	-	300	8	-
300	7	-	300	10	-
300	8	-	300	11	-
300	10	-	300	9	-
300	4	-	300	2	-
300	2	-	300	1	-
300	1	-	300	4	-
300	3	-	300	3	-
300	6	-	300	6	-

Conclusions:

The self-ignition temperature of the test item is 300 °C.

Description of key information

The self-ignition temperature of the test item is 300 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

300 °C

Additional information

In a preliminary test the temperature of the apparatus was increased from 275 °C step by step with 50 K until an ignition was observed. Subsequently the temperature was decreased again in steps of 10 to 20 K until no igniton was observed.

Appr. the lowest temperature at which an ignition in the preliminary test was observed was used as starting point for the main test. In the case the ignition at this temperature was repeated, the temperature was decreased by 5 K and the test was repeated. This procedure was repeated until no ignition was observed. Subsequently the amount of test item added to the apparatus was varied at the same temperature. If an ignition occurred during the variation of the amount of test item, the temperature was decreased again by 5 K and the procedure started again.

The self-ignition temperature of the test item is 300 °C.