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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Auto flammability

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Administrative data

Link to relevant study record(s)

auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2005-08-30 - 2005-09-12 (experimental phase)
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
according to guideline
other: IEC 79-4
GLP compliance:
However the data were produced in a laboratory issued with a current Statement of Compliance to the principles of Good Laboratory Practice
Auto-ignition temperature:
400 °C
Atm. press.:
102.1 kPa
Remarks on result:
other: 400 ±5 °C; ambient atmospheric pressure (766 mm Hg, 1.0079 atm, 102.1 kPa)

Remark: This test is usually carried out at normal ambient pressure. The actual pressure is not given in the study report. However in the corresponding archived raw data the actual pressure was recorded as 766 mm Hg (i.e. 1.0079 atm, 102.1 kPa).

The study is considered to be adequate and reliable.
Executive summary:

Auto-ignition temperature (102.1 kPa): 400 °C

Description of key information

Auto-ignition temperature (Schürch): no self-ignition up to the melting point of the substance (approx. 70 °C)

Auto-ignition temperature (102.1 kPa, Bailey): 400 °C

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
400 °C

Additional information

Two studies are available which measured the auto flammability of the substance. Both are considered to be adequate and reliable. The study with the extended temperature range is considered as more relevant and is carried forward for use in risk assessment, classification and labelling.