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Description of key information

Reaction mass of aluminium and magnesium oxide and spinel (Mg(AlO2)2) are not bioavailable via a relevant route of exposure. It is therefore predicted that aluminium skimmings cannot produce systemic toxicity via the oral or dermal route of exposure. Inhalation exposure is not relevant because of the coarse particle size distribution (MMAD > 100 µm).

Key value for chemical safety assessment

Additional information

The constituents of aluminium skimmings are eiter not bioavailable (Al) or toxicologically not relevant (Mg, NH4 +).

In addition, inhalation is not a relevant route of exposure due to the MMAD > 100 µm and the negligible vapour pressure of the components in aluminium skimmings.

Justification for classification or non-classification