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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Physical & Chemical properties

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relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
24-25 Oct 2012
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
according to guideline
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
The substance is a solid with a broad melting range of subcomponents from -64 to 145 °C
Principles of method if other than guideline:
Internal method VTA(S)23N07014.01
GLP compliance:
Relative self-ignition temperature:
340 °C
Remarks on result:
other: atmospheric pressure 1011-1016 hPa

Description of key information

340 °C under ambient pressure (1011-1016 hPa); not self-heating

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
340 °C

Additional information

The relative self-ignition temperature of the substance was determined in the test performed according to EU Method A.15 to be 340 °C. The substance is a solid with a melting area < 160 °C (not self-heating). Although the test method was designed for liquids and gases, it can be applied for solids characterized by the melting point or melting area in the range of relatively low temperatures (in this case: from -64 to 145 °C).