Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Residues, cementation and reduction, precious metals refining, is a grey-black or borwn powder, with a density of 6.655 g/cm3 at 20°C and a melting point of greater than 450°C (>723K). The percentiles calculated from the particle size distribution were x10: 0.61 -0.62 µm, x50: 2.26 -2.30 µm and x90: 5.48 -5.61 µm. In a water solubility study, the elements detected were Ba, Ca, Cu, Ir, K, Mg, Na, Pd, S and Sr.