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Substance Name: Lead, dross, antimony-rich
RN: 69029-45-4


  • TSCA Definition 2018: A scum or slag formed on the surface of molten lead during the process of removing antimony along with arsenic by oxidation with air. It consists of antimony, arsenic and lead oxides.

Molecular Formula

  • Unspecified

Classification Code

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Links to Resources

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Names and Synonyms


  • Antimony slag from softening furnace
  • EC 273-791-5
  • EINECS 273-791-5
  • Lead refinery softener slag

Systematic Name

  • Lead, dross, antimony-rich

Registry Numbers

CAS Registry Number

  • 69029-45-4

System Generated Number

  • 0069029454