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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 21 SEP 2006 to 21 DEC 2006
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to
Guideline:
other: NF T 20-037 standard
Deviations:
no
GLP compliance:
yes (incl. certificate)
Key result
Auto-ignition temperature:
430 °C
Atm. press.:
1 011 hPa

Preliminary test:

The result of predetermination was Ti =440°C

First test series:

The result of the first test is that the optimum volume is 0.1 ml and at the temperature of 430°C (T1S), there is no auto-ignition for all the volume (50 to 300 µl)

Second test series:

There was no auto-ignition except for 70 µl (test under 1011 hPa, time to inflammation 14 s)

Third test series:

There was ignition at 434°C (test under 1011 hPa, time to inflammation 15 s)

Conclusions:
The auto-ignition temperature of DIMETHYL 2-METHYL GLUTARATE is 430°C at 1011 hPa.
Executive summary:

The determination of the Auto-Ignition Temperature of the liquid test item (i.e. DIMETHYL 2-METHYL GLUTARATE) has been performed according to the EEC Directive 92/69, part A15 method, the NF T 20 -037 and DIN 51 794 standards and the GLP.

Samples were injected by means of a volumetric syringe to assure a rapid injection. The time lag between injection and ignition was measured for all tests up to 5 minutes. The test vessel was flushed with air, then a sufficient time interval was allowed to ensure temperature stabilisation for the next test.

In the preliminary test, the Ti was 440°C. The result of the first test is that the optimum volume is 0.1 ml and at the temperature of 430°C (T1S), there is no auto-ignition for all the volume (50 to 300 µl). In the second test series, there was no auto-ignition except for 70 µl (test under 1011 hPa, time to inflammation 14 s). In the third test series, there was ignition at 434°C (test under 1011 hPa, time to inflammation 15 s)

 

Based on these results, the Auto-Ignition Temperature of DIMETHYL 2-METHYL GLUTARATE is 430°C at 1011 hPa.

Description of key information

The auto-ignition temperature of DIMETHYL 2-METHYL GLUTARATE is 430°C at 1011 hPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
430 °C

Additional information

One experimental study, scored as Klimisch 1, is available (Vibert M., 2006) and selected as a key study.