Registration Dossier
Registration Dossier
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EC number: 273-727-6 | CAS number: 69012-27-7 By-product of chromium refining containing oxides of aluminum, magnesium and silicon.
Endpoint summary
Administrative data
Description of key information
Additional information
FeCr-slag is inorganic mineral material and can be compared to silicate minerals occurring in soil naturally. Potential hazard comes from metals, but there are in highly insoluble because of the FeCr-slag mineralogy. Environmental fate of metals in Ferrochromium slag used in road construction has been studied (E. Rossi) using MMSOILS 4.0 program. The final conclusions were that metals in FeCr-slag products are highly insoluble and they don’t cause pollution to groundwater or form any significant risk to human, animals or plants. Based on the calculations concentration of Cr or Mo does not exceed any threshold limit set to surface water or domestic water. Similar results were obtained in tests (SGI) conducted in FeCr-slag containing layers in road constructions: leaching of metals from FeCr-slag and transport is low. In Dandelions growing directly in FeCr-slag containing construction it was observed elevated chromium concentrations in roots, but not in the plant leaves.
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