Lead-Antimony Litharge
The elements lead and antimony are applied in flame retardants on circuit boards and are used in the fireworks, paint, catalyst, and battery industries.
Lead-antimony litharge – like lead-bismuth alloy – is used as starting material that is refined into its individual elements. The lead recovered in this process is used first and foremost in the battery industry. Antimony, a silvery, shiny, brittle semimetal, is used primarily to produce antimony trioxide, a flame retardant. Furthermore, antimony is a component of circuit boards in the electrical industry. Additional applications for antimony compounds include the paint, fireworks, and catalyst industries.
Both lead-bismuth alloy and lead-antimony litharge from Aurubis fulfill the REACH requirements.
| Specifications of lead-antimony litharge | |
| Pb | ca. 55 % (range: 55-70 %) |
| Sb | ca. 27 % (range: 20-40 %) |
| Ag | ca. 500-750 gto |
| Au | ca. 10 gto |
| Cu | < 0,5 % |
| As | < 1,0 % |
| Sn | < 1,0 % |
| Bi | < 0,05 % |
| Fe | < 0,5 % |
| Te | < 0,1 % |
| Se | < 0,1 % |
| Cd | < 0,05 % |
| Zn | < 1,0 % |
| Moisture | < 1,0 % |
| Avg. material size > 10 cm |
ca. 50 % of total material |
|
Material size 1-10 cm |
ca. 40 % of total material |
|
Material size < 1 cm |
ca. 10 % of total material |
