Registration Dossier
Registration Dossier
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EC number: 273-836-9 | CAS number: 69029-97-6
Oxidising properties
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:
- no
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
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