Registration Dossier
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EC number: 273-792-0 | CAS number: 69029-46-5 A scum formed on the surface of molten lead during the process of removing bismuth by the addition of calcium and magnesium. It consists of lead containing calcium and magnesium bismuthides.
Endpoint summary
Administrative data
Description of key information
Additional information
Substance: Lead dross bismuth rich
“Lead, dross bismuth rich is formed when calcium and/or magnesium are added to molten lead bullion to remove bismuth. Lead dross, bismuth rich consists of variable amounts of lead, zinc, silver, bismuth and other metals in either alloy form or as compounds such as oxides.” |
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EC number/ EINECS No. |
CAS No. |
273-792-0 |
69029-46-5 |
Lead dross bismuth rich is a grey/light brown odourless solid (at 20°C and 101.3 kPA) in the form of choarse chuncks. The density will vary according to the precise composition of the sample. The density of the tested sample was 4.14 g/cm3. The melting point is shown to be > 500°C. Consequently, boiling point and vapour pressure cannot be determined. The water solubility test shows dissolution of metal ions. Two samples were tested for granulometry, a D50 = 569 micrometer and 1679 micrometer were determined. Both the results of the water solubility test and the granulometry test should be used with caution.
There is no evidence of physical hazards in terms of (auto)flammability, explosivity and oxidizing properties.
Studies regarding flash point, partition coefficient and surface tension do not need to be conducted.
Waivers are in place for all these endpoints.
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