Waste solids, lead silver anode (305-449-9)
Zinc Substances > Zinc Intermediates

Substance description/characteristics

  1. Name and other identifiers of the substance:

The substance Waste solids, lead silver anode is a UVCB (origin: inorganic)

Public name: Lead-Silver Oxides; Pb-Ag Oxide Drosses

Substance identity:
EC number: 305-449-9
EC name: Waste solids, lead silver anode
CAS number (EC inventory): 94552-05-3
IUPAC name: Residues remaining after recovering, melting and alloying of electrolytic lead/silver anodes. Consists primarily of lead, lead compounds, manganese oxides as well as minor amounts of other metals and/or their compounds.

During the Zinc electrolysis, the Lead-anodes need to be regularly cleaned and maintained. At the end of their service life, anodes need to be recycled. They are taken to a melting/casting shop where the Pb.Ag anodes are melted and recast

A scum/dross is formed on the melt surface, containing Lead oxide, manganese dioxide and some entrained metallic Pb-Ag alloy

The residues are isolated, from the molten metallic bath, by mechanical separation (rattling) and collected from the baghouse-filters

The separated material is collected into small containers near the furnace, the casting line and/or the filters

This Intermediate is typically used in production units of Lead metal or Lead compounds.
Molecular formula:  n.a.
Molecular weight range:  n.a.


  1. Composition of the substance

Please download composition information from document at the bottom of the page. 

  1. Classification

Please download classification information from document at the bottom of the page. 

Section 3 of CSR: Classification and labelling. Self classification of the intermediate according to DSD/DPD and CLP/GHS. Unless specific data were provided, the toxicity mixture rules were applied.
(Size : 0.02 MB)
Section 1.2 of CSR: composition of the intermediate.
(Size : 0.02 MB)
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