(2E)-2-ethyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)but-2-en-1-ol

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:

From June 15 to 17, 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Well described study conducted in accordance with GLP and EU-Method A.15 without any deviation

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Auto-ignition temperature:

255 °C

Atm. press.:

99 522 Pa

Remarks on result:

other: Experiment 1: Ignition delay: 85 seconds

Auto-ignition temperature:

257 °C

Atm. press.:

99 663 Pa

Remarks on result:

other: Experiment 2: Ignition delay: 78 seconds

Auto-ignition temperature:

252 °C

Atm. press.:

99 353 Pa

Remarks on result:

other: Experiment 3: Ignition delay: 67 seconds

Key result

Auto-ignition temperature:

ca. 250 °C

Atm. press.:

ca. 101 325 Pa

Remarks on result:

other: mean of the results of 3 experiments

Preliminary test: Fuming was observed at all measurements. At the highest temperature, one pop (taken as sign of ignition) could be perceived. Atmospheric pressure during the pre-test was 99482.

Table 1: Pre-Test: Ignition attempts

 

Time	Temperature(Channel 0)	Temperature(Channel 1)	Drops used	Ignition?	Ignition Delay	Observations
	^oC	^oC	#	yes/no	seconds
09.^52	276	278	1	no	--	fume
10.^01	301	301	1	no	--	fume
10.^09	319	320	1	yes	4	pop, flame, fume

 

Main test: Auto ignition temperatures during test 1, 2 and 3 were observed to be 255, 257 and 252 °C at 99522, 99663 and 99353 Pa, respectively.

 

Table 2: Main study: Experiment 1

 

Time	Temperature (Channel 0)	Temperature (Channel 1)	Drops used	Ignition?	Ignition Delay	Observations
	^oC	^oC	#	yes/no	seconds
13.^33	315	315	1	no	--	strong fuming
13.^51	319	320	1	yes	7	pop, flame, fume
14.^00	314	316	2	yes	4	pop, flame, fume
14.^05	309	311	2	yes	7	pop, flame, fume
14.^10	304	306	2	yes	4	pop, flame, fume
14.^15	299	301	2	yes	10	pop, flame, fume
14.^23	294	296	2	yes	11	pop, flame, fume
14.^31	289	291	2	no	--	Strong fuming
14.^47	289	290	3	yes	13	pop, flame, fume
14.^53	285	285	3	yes	16	pop, flame, fume
15.^01	280	280	3	yes	23	pop, flame, fume
15.^07	276	274	3	yes	32	pop, flame, fume
15.^12	271	269	3	yes	41	pop, flame, fume
15.^18	266	264	3	no	--	strong fuming
15.^24	266	264	4	no	--	strong fuming
15.^32	266	264	5	yes	50	pop, flame strong fuming
15.^37	261	259	5	no	--	strong fuming
15.^44	260	260	6	no	--	strong fuming
15.^51	261	259	7	yes	52	pop, flame strong fuming
09.^15	256	254	7	yes	85	pop, flame strong fuming
09.^28	250	250	7	no	--	strong fuming
09.^39	249	250	8	no	--	strong fuming
09.^48	249	250	6	no	--	strong fuming
09.^56	251	252	6	no	--	strong fuming

 

Table 3: Main study: Experiment 2

 

Time	Temperature (Channel 0)	Temperature (Channel 1)	Drops used	Ignition?	Ignition Delay	Observations
	^oC	^oC	#	yes/no	seconds
11.^07	249	250	7	no	--	strong fuming
11.^34	255	255	7	no	--	strong fuming
11.^43	260	260	7	yes	66	pop, flame, strong fuming
11.^55	256	254	8	no	--	strong fuming
12.^15	256	254	9	no	--	strong fuming
12.^25	258	256	9	yes	78	pop, flame, strong fuming

 

Table 4: Main study: Experiment 3

 

Time	Temperature (Channel 0)	Temperature (Channel 1)	Drops used	Ignition?	Ignition Delay	Observations
	^oC	^oC	#	yes/no	seconds
13.^49	251	252	9	yes	67	pop, flame, strong fuming
13.^56	246	248	9	no	--	strong fuming
14.^20	246	247	10	no	--	strong fuming
14.^30	247	247	11	no	--	strong fuming
14.^43	249	248	11	no	--	strong fuming

Conclusions:

The auto ignition temperature of the test item was determined to be 250 °C.

Executive summary:

A GLP study was conducted to determine the auto flammability of the test item according to EU Method A.15. In the preliminary test, fuming was observed at temperatures above 276 °C at 99482. In the main test, auto ignition temperatures during test 1, 2 and 3 were observed to be 255, 257 and 252 °C at 99522, 99663 and 99353 Pa, respectively.

 

The auto ignition temperature of the test item was determined to be 250 °C.

Description of key information

The auto ignition temperature of the test item was determined to be 250°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

250 °C

Additional information

Key study well described conducted in accordance with GLP and EU-Method A.15 without any deviation. Therefore a reliable of 1 is assigned and the result of this key study can be used as key value for chemical safety assessment.