Lead (Pb)

1, Physical character:                                                 
Atomic Weight: 207.2
Electronegative: 2.33
Density: ρ =11.34 g'cm-3
Melting Point: 327.46'c
Boiling Point: 1749'c

2, Specification:
High Purity Leads:
Pb-05 Grade 99.999. The content of Lead is above 99.999%. The total content of AG, Al, As, Bi, CD, Cu, Fe, Mg, Ni, Sb, Sn & Zn is bellow 10 ppm;
Uitra Purity Leads:
Pb-06 Grade 99.9999. The content of Lead is above 99.9999%. The total content of AG, Al, As, Bi, CD, Cu, Fe, Mg, Ni, Sb, & Sn is bellow 1 ppm;
Uitra High Purity Leads:
Pb-07 Grade 99.9999. The content of Lead is above 99.99999%. 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.