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Environmental fate & pathways


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Link to relevant study record(s)

Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is highly insoluble in water
Justification for type of information:
Ferrous slag is an almost insoluble, inorganic UVCB. Leachate of slag may contain minor amounts of inorganic salts. However, dissolution of minor slag fraction does not fulfill definition of hydrolysis.

Description of key information

Ferrous slags do not hydrolyse in water.

Key value for chemical safety assessment

Additional information

Ferrous slags are inorganic UVCB similar to natural rock, with a very low solubility, and very high stability in water rendering slags suited for hydraulic engineering e.g. as a rock material in waterway construction and for coastal protection. No degradation was observed even after more than 10 years of use in waterway construction.