Lead, face-centered cubic structure, a soft malleable poor metal with dull grayish color, insoluble in wafer, poor electrical conductivity, is easily oxidized by oxygen in the air into the black and form a compact layer of lead oxide film to prevent further oxidation internally.
High purity Lead of 99.999%, 99.9999% 5N 6N by electrorefining process and special purification is primarily used in the preparation of compound semiconductor materials, refrigerating elements, infrared photoelectric converting device, high efficient temperature difference element, solders, X-rays proof material and used as reducing agent or high purity analytical reagent etc.High Purity Lead at Western Minmetals (SC) Corporation with 99.999% 99.9999% 5N 6N purity is in size of lump, chunk, shot, bar and crystal or customized specification can be delivered, which is packed in composite aluminum bag with argon gas filled protection, carton box outside.
No. |
Item |
Standard Specification |
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1 |
HfC |
Content % |
Impurities % ≤ each |
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2 |
Chemical |
Free C |
Total C |
O |
N |
Fe |
Ca |
K/Na/Si/Nb |
≤0.30 |
≥6.15 |
0.50 |
0.05 |
0.05 |
0.05 |
0.005 | ||
3 |
Size |
0.5-500micron, 5-400mesh |
||||||
4 |
Packing |
2kgs in composite bag with iron drum outside, 25kgs net |
No. |
Item |
Standard Specification |
|||||
1 |
ZrC |
Content % |
Impurities % ≤ each |
||||
2 |
Chemical |
Free C |
Total C |
O |
N |
Fe/Ca |
K/Si/Na/Nb |
≤0.50 |
≥11.2 |
0.50 |
0.05 |
0.05 |
0.005 |
||
3 |
Size |
0.5-500micron, 5-400mesh |
|||||
4 |
Packing |
2kgs in composite bag with iron drum outside, 25kgs net |