We are specialized in the R & D and manufacture of feed additives, chemical reagents and cupric salts. Products feature high technological content and...  
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copper powder Product name : copper powder
Product Category:Cupric salts;
CAS No.: 7740-50-8
Formula:Cu
MW:63.54
Characters:Light rose red branch-like powder, can be easily oxidized in humid air, soluble in heated sulphuric acid or nitic acid.
Specifications:
Copper powder
Chemical reagent grade
pneumatic atomized copper powder
water atomized cooper powder
Reduction cooper powder
Item
Spec.
Spec.
Spec.
Spec.
Assay(Cu) %
≥99.8
≥99.6
≥99.6
≥98.0
Hydrogen loss %
≤0.15
≤0.25
Total impurities %
≤0.2
≤0.2
Bulk d ensityg/cm3
2.0--4.0
2.6--5.0
Velocity of flow s/50g
25-60
20-35
Fineness(meshes)
100-300
100-300
100-300
Iron(Fe)%
≤0.015
≤0.02
≤0.02
Lead(Pb)%
≤0.03
≤0.05
≤0.05
Water %
≤0.05
≤0.05
As%
≤0.005
≤0.005
≤0.005
Sb%
≤0.001
≤0.01
≤0.01
Bi%
≤0.002
≤0.002
≤0.002
Ni%
≤0.003
≤0.003
≤0.003
Sn%
≤0.004
≤0.004
≤0.004
Zinc(Zn)%
≤0.004
≤0.004
≤0.004
S%
≤0.004
≤0.004
Sulphates(SO4)%
≤0.015
≤0.015
≤0.015
Chlorides(Cl) %
≤0.004
≤0.004
≤0.004
Residue on ignition after nitric acid treatment
≤0.05
≤0.05
≤0.05

Product Usage: It is used for powder metallurgy parts, hard metal, diamond tools, electrical carbon products, handicraft articles, friction materials, non-ferrous alloy etc.; also used for chemical catalysts, carbon brush, spraying materials and welding electrodes etc.
Packaging:25kg cardboard drum, lined with double-layer plastic bag
Storage Precautions:Stored in cool and draughty warehouse, kept away from fire and heat source; isolated from oxidants, acids and halogens.
MSDS: Download
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