3,5,5-trimethylhexanoic acid

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:

Study initiation date: 29 July 2009 Study completion date: 19 November 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))

Version / remarks:

Directive 92/69/EEC, Official Journal L 383 A 1992

Deviations:

no

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes

Key result

Auto-ignition temperature:

415 °C

Atm. press.:

1 009 hPa

Remarks on result:

other: Lowest ignition temperature of all single results of the main test (consisting of three tests)

Details on measurements:

Lowest ignition temperature [°C]:

Test 1: 420;

Test 2: 415;

Test 3: 415;

The measured lowest ignition temperatures of the main test are > 300 °C and do not differ by more than 20 °C, thus the test is satisfactory.

The auto-ignition temperature is defined as the lowest temperature of all single results of the main test, but rounded down to multiples of 5 °C.

Auto-ignition temperature: 415 °C

Details on single measurements:

Test 1:

Temperature [°C]	Injected volume [Drops]	Time-lag [s] until ignition
500	5	2
495	5	2
490	5	2
485	5	2
480	5	3
475	5	3
470	5	3
465	5	7
460	5 / 10	- / 3
455	10	5
450	10	6
445	10	7
440	10	12
435	10 / 15	- / 8
430	15	5
425	15	9
420	15	7
415	15 / 20	- /-
418	20	-

Test 2:

Temperature [°C]	Injected volume [Drops]	Time-lag [s] until ignition
430	5 / 10	- / 10
425	10	10
420	10	15
415	10 / 15	- / 17
410	15 / 20	- / -
413	20	-

Test 3:

Temperature [°C]	Injected volume [Drops]	Time-lag [s] until ignition
430	5 / 10	- / 14
425	10	29
420	10	19
415	10/15	- / 13
410	15 / 20	- / -
413	20	-

Conclusions:

Auto-ignition temperature (EU method A.15): 415 °C (1009 hPa)

Executive summary:

The auto-ignition temperature of the submission substance was determined compliant with GLP according to EU test method A.15 [Directive 92/69/EEC, Official Journal L 383 A 1992] and DIN 51 794.

The reliable study produced the following result (Lowest ignition temperature of all single results of the main test (consisting of three tests)):

Auto-ignition temperature: (1009 hPa): 415 °C

Description of key information

Auto-ignition temperature (EU test method A. 15 / DIN 51 794): 415 °C at 1009 hPa

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

415 °C

Additional information

The auto-ignition temperature of the submission substance was determined compliant with GLP according to EU test method A.15 [Directive 92/69/EEC, Official Journal L 383 A 1992] and DIN 51 794.

The reliable study produced the following result (Lowest ignition temperature of all single results of the main test consisting of three tests):

Auto-ignition temperature: (1009 hPa): 415 °C