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Physical & Chemical properties

Auto flammability

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Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From February 16, 2007 to February 21, 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Version / remarks:
Cited as Directive 92/69/EEC, A.16
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Key result
Relative self-ignition temperature:
> 403 °C
Remarks on result:
no self ignition observed under the test conditions

No autoignition temperature was observed up to the maximum test temperature of 403°C.

Conclusions:
Under the study conditions, no autoignition temperature was observed for the test substance up to the maximum test temperature of 403°C.

Executive summary:

A study was conducted to determine the autoignition of the test substance, C12-16 ADBAC (94.4% active) according to EU Method A.16, in compliance with GLP. Height 8 cm3 (3.8 g) of the test substance was placed in an oven at 24°C; the temperature time curve relating to conditions in the center of the sample was recorded while the temperature of the oven was increased to 400°C at a rate of 0.5°C/min. The temperature of the oven at which the sample temperature reaches 400°C by self-heating is called the autoignition temperature for the purpose of this test. Under the study conditions, no autoignition temperature was observed for the test substance up to the maximum test temperature of 403°C (Moller, 2007).

Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1996
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Although not GLP, there is no reason to doubt the results obtained from these straight forward and routinely used tests. Furthermore, results are completely in line with general available information.
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
Cited as Directive 92/69/EEC, A.15
GLP compliance:
no
Key result
Auto-ignition temperature:
371 °C
Remarks on result:
other: atm. press.: not specified
Conclusions:
Under the study conditions, an autoignition temperature of 50% aqueous solution of the test substance was found to be 371°C.
Executive summary:

A study was conducted to determine the autoignition temperature of the test substance, C12-16 ADBAC (50% active in water) according to EU Method A.15. The autoignition temperature apparatus DIN 51794 was used in this experiment. Under the study conditions, an autoignition temperature of 50% aqueous solution of the test substance was found to be 371°C (Schuurman, 1996).

Description of key information

The autoignition temperature was determined according to EU Method A.16 and 15 (Moller, 2007 and Schuurman, 1996) 

Key value for chemical safety assessment

Additional information

Pure substance: No auto-ignition was observed up to the maximum test temperature of 403°C (Moller, 2007); 50% aqueous solution: 371°C (Schuurman, 1996)