porducts list
- Plastic Extruders [1]
- Zinc Oxide [4]
contact datails
Weifang Longda Zinc Industry Co., Ltd.
Longda Industrial Park,Gudi Street,Weifang City,Shandong
+86-536-2200586
Longda Industrial Park,Gudi Street,Weifang City,Shandong
+86-536-2200586
Uses: Mainly used in the electronics industry to manufacture deflection
magnetic core or other zinc magnesium ferrite magnetic cores.
Standard: HG/T2384-1997
Item | Index | ||
Model | First grade | Qualified product | |
Zinc oxide (as ZnO)%≥ | 99.75 | 99.65 | |
Water soluble matter %≤ | 0.1 | 0.1 | |
Insoluble matter in HCl%≤ | 0.005 | 0.008 | |
Metal zinc (as Zn)%≤ | No | 0.001 | |
Loss on ignition%≤ | 0.2 | 0.2 | |
Chloride (as Cl)%≤ | 0.005 | - | |
Pb %≤ | 0.03 | 0.04 | |
Mn %≤ | 0.0001 | 0.0002 | |
Cu %≤ | 0.0002 | 0.0004 | |
Cd %≤ | 0.005 | 0.03 | |
Ni %≤ | 0.1 | - | |
Volatile matter on 105oC%≤ | 0.2 | 0.4 | |
Apparent density | Compactness g/ml | 0.8-1.0 | 0.8-1.0 |
0.4-0.5 | 0.4-0.5 | ||
Residue on sieve (45um experimental sieve) %≤ | 0.05 | 0.15 | |
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