Registration Dossier
Registration Dossier
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EC number: 266-002-0 | CAS number: 65996-69-2 The fused substance formed by the action of a flux upon the gangue of the iron-bearing materials charged to a blast furnace and upon the oxidized impurities in the iron produced. Depending upon the particular blast furnace operation, the slag is composed primarily of sulfur and oxides of aluminum, calcium, magnesium, and silicon.
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
Slags are not volatile.
Slags are solid UVCB which are almost insoluble in water. Since slags consist of an inorganic polymeric matrix and/or crystals, volatility is expected to be extremely low. As the melting point is > 1000 °C, there is no need to perform any study on the boiling point or on the vapour pressure, and consequently, there is no measured value for the Henry´s law constant.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0
- at the temperature of:
- 20 °C
Additional information
Ferrous slags are essentially not volatile (0.000000001 (dimensionless) is the lowest Henry´s law constant which can be entered into the field for the key value).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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