Molecular Formula: ZnO
As reinforcing agent and activator in rubber or cable industries; as colorant and filler of white size; as vulcanizing agent of natural rubber and neoprene rubber etc.
Quality Standard: HG/T 2572-94
Item
Index
Nano -
First Quality
Qualifier
ZnO content, %
95-98
95-98
96-98
Moisture, %
0.7
0.7
0.6
Sol. in water , %
0.5
0.7
0.3
Loss on ignition , %
1-4
1-4
0.5
Insol. in Hcl, %
0.02
0.05
0.01
Lead oxide(Pd) content, % ≤
0.001
0.005
0.003
Manganese oxide(Mn) content, % ≤
0.001
0.003
0.001
Cupric oxide(Cu) content, % ≤
0.001
0.003
0.001
Fineness (45μm test sieve), % ≤
0.1
0.4
Fineness(nm) ≤
40
Specific surface, m/g ≥
45
35
55
Bulk density, g/ml ≤
0.35
0.4
0.3
