Description
Lead (Pb)
1, Physical character:
Atomic Weight: **7.2
Electronegative: 2.*3
Density: ρ=*1.*4 g·cm−3
Melting Point: **7.*6℃
Boiling Point: ***9℃
2, Specification:
High Purity Leads:
Pb**5 Grade *9.**9. The content of Lead is above *9.**9%. The
total content of Ag, Al, As, Bi, Cd, Cu, Fe, Mg, Ni, Sb, Sn &
Zn is bellow *0 ppm;
Uitra Purity Leads:
Pb**6 Grade *9.***9. The content of Lead is above *9.***9%.
The total content of Ag, Al, As, Bi, Cd, Cu, Fe, Mg, Ni, Sb, &
Sn is bellow 1 ppm;
Uitra High Purity Leads:
Pb**7 Grade *9.***9. The content of Lead is above *9.****9%.
The total content of Ag, Al, As, Bi, Cd, Cu, Fe, Mg, Ni, Sb, Sn
& Zn is bellow 0.1 ppm;
3, Physical Size:
Virgulate, Ingots.
4, Usage:
It is mainly used in the manufacture of compound
semiconductors, refrigerating element, infrared photoelectric
converting device, high efficient thermoelement and solar
etc.
5, Packing:
It is packed with dacron film, then covered with a sealed
plastic film bag or vacuum sealed in a glass ampule.
