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Description of key information

The substance does not contain chemical groups associated with explosivity (see IUCLID 4.23, chemical and mineralogical composition of the substance)

Key value for chemical safety assessment

non explosive

Additional information

Copper residue, provided by Norilsk Nickel Harjavalta Oy, was characterized in detail. Based on chemical assays studied copper residue sample contains 55.3% copper, 1.3% nickel, and 20.1% sulfur and consists of mainly of covellite –type copper sulfide (64.4%), antlerite- brochantite –type copper sulfates (17.9%), iron sulfates (9.7%) and magnetite (5.1%).

Justification for classification or non-classification

No structural alerts are observed. This conclusion is supported by experience in handling and use.