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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

The self-ignition temperature of the substance is 415 °C (688.15 K) at 1019 hPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
688 K

Additional information

A recently-completed guideline study with no deviations showed the substance to possess a self-ignition temperature of 415 °C at a pressure of 1019 hPa (AQura, 2010). This is supported by a slightly higher autoignition temperature for the substance of 443 °C cited in two peer-reviewed handbooks (Lide, Quincey) as well as in two other handbooks (Patnaik, Flick), and the slightly lower autoignition temperature of 405 °C cited by Heitmann. The value of 107 °C reported by MacCormack (1938) for a mixture of the substance with air is considered to be unreliable. The values in the range 405 °C to 443 °C are selected as being more conservative than the values of 588 °C to 594 °C estimated by Chen (2009), and of these, the most recent experimental value of 415 °C (688.15 K) is considered to be the most reliable, and is therefore chosen as the most appropriate value to carry forward for classification, labeling and risk assessment purposes.

The available information is considered to be adequate for the purposes of classification and labelling, and risk assessment, according to Regulation (EC) No. 1907/2006, Annex XI, 1.2.