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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Boiling point

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Administrative data

Link to relevant study record(s)

Description of key information

Boiling range > 2000 °C

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
2 000 °C

Additional information

As ferrous slags are UVCB composed of several fused silicates, they have no well-defined boiling point but a boiling range. The transition from the liquid state to the gas phase occurs at temperatures of more than 2000 °C (estimated), being influenced by the exact composition of the molten slag. In general, during production and use, the temperatures are several hundred °C below the boiling point and due to the high input of energy required to reach this temperature, no incidental heating to the boiling range is possible.