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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Oxidising properties

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Administrative data

Link to relevant study record(s)

Description of key information

test waived: inorganic substance, absence of structural alerts (expert judgement, based on IUCLID 4.23: chemical and mineralogical composition of a representative UVCB)

Key value for chemical safety assessment

Oxidising properties:

Additional information

Absence of structural alerts

The tested material was characterized (physico-chemical and mineralogical properties) in view of the upcoming REACH registrations of copper intermediates and copper slags by the Copper Consortium.

The studied representative speiss sample contains 55.9% copper, 10.2% antimony, 7.35% arsenic, 7% nickel, 0.12% lead and 2.4% sulphur. The studied speiss sample consists mainly of metallic copper (32.4%), covellite, CuS, (26.2%), iron arsenic -alloy, FeAs (17.5%), nickel antimony –alloy, NiSb, (14.9%) with accessory copper arsenides and copper- tin alloys.

Metallic copper carries 51.3% of the speiss total copper content, and covellite carries (34%). The rest is carried by copper and iron arsenides and copper- tin alloys. The main carrier of arsenic is iron- arsenic –alloy (72%), other carries being metallic copper and copper arsenide. The lead in the studied sample occurs as metallic.

None of the above mentioned constituents is known to act as oxidising agent. Thermo-Gravimetric analysis demonstrate that the material is itself oxidized starting slowly at ca. 200°C and definitively at above 400°C (see IUCLID section 4.23 Additional physico-chemical information).

Justification for classification or non-classification

Testing in accordance with UN Transport Test O.1 is not required: waiver is supported by expert judgement (absence of structural alerts): see discussion above