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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:
26.9.2013
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to
Guideline:
ASTM E659 (Standard test method for autoignition temperature of liquid chemicals)
Deviations:
no
GLP compliance:
no
Key result
Auto-ignition temperature:
480 °C
Atm. press.:
97 425 Pa
Remarks on result:
other: 480 ± 20 °C

The measured value of the autoignition temperature: 481.16 °C (mass sample 141 mg)

Approximated value: 480 °C

Autoignition temperature: 480 ± 20 °C

Conclusions:
Under the conditions of this study, the autoignition temperature was determined to be 480 ± 20 °C. This temperature is rounded.
Executive summary:

The autoignition temperature of the test substance was investigated in accordance with the standard ASTM E659-78 using the standard method for liquids.

The substance was very viscous. This material was heated in aluminium foil at 60 °C. After creating a continuous layer with a thickness of 1 mm, the substance was cooled down to - 60 °C, and subsequently broken into small fragments (about 3 x 3 mm). These fragments were injected into the laboratory instrument for measuring the autoignition temperature.

Given the difficulty in compliance to obtain constant weights of the samples in dependence on the properties of the substance was determined to an accuracy ± 20 °C.

Under the conditions of this study, the autoignition temperature was determined to be 480 ± 20 °C. This temperature is rounded.

Description of key information

The autoignition temperature was determined to be 480 ± 20 °C. This temperature is rounded.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
480 °C

Additional information

The autoignition temperature of the test substance was investigated in accordance with the standard ASTM E659-78 using the standard method for liquids.

The substance was very viscous. This material was heated in aluminium foil at 60 °C. After creating a continuous layer with a thickness of 1 mm, the substance was cooled down to - 60 °C, and subsequently broken into small fragments (about 3 x 3 mm). These fragments were injected into the laboratory instrument for measuring the autoignition temperature.

Given the difficulty in compliance to obtain constant weights of the samples in dependence on the properties of the substance was determined to an accuracy ± 20 °C.

Under the conditions of this study, the autoignition temperature was determined to be 480 ± 20 °C. This temperature is rounded.