ZnO% ≥:99.8
Lead oxide (Pb)% ≤0.003
Cupric oxide (Cu)% ≤0.0001
Manganic oxide (Mn)% ≤0.0001
105 C Volatile substances% ≤0.06
Hydrochloric indissoluble substance% ≤0.004
Specific surface area (m2/g) ≥60
Burning decrement% ≤0.12
Water dissolube% ≤0.01
Sieve residue (um)20-40(nm)
ZnO% ≥99.7
Lead oxide (Pb)% ≤0.037
Cupric oxide (Cu)% ≤0.0002
Manganic oxide (Mn)% ≤0.0001
105 C Volatile substances% ≤0.3
Hydrochloric indissoluble substance% ≤0.012
Specific surface area (m2/g) ≥50
Burning decrement% ≤0.2
Water dissolube% ≤0.1
Sieve residue (um)4-20
ZnO% ≥99.5
Lead oxide (Pb)% ≤ 0.04
Cupric oxide (Cu)% ≤0.0004
Manganic oxide (Mn)% ≤ 0.0001
105 C Volatile substances% ≤0.4
Hydrochloric indissoluble substance% ≤0.015
Specific surface area (m2/g) ≥ 45
Burning decrement% ≤0.2
Water dissolube% ≤ 0.2
Sieve residue (um) 4-50
ZnO% ≥99
Metal (Zn)% ≤0.01
Lead oxide (Pb)% ≤0.15
Cupric oxide (Cu)% ≤0.0004
Manganic oxide (Mn)% ≤ 0.0001
105 C Volatile substances% ≤0.4
Hydrochloric indissoluble substance% ≤0.05
Specific surface area (m2/g) ≥ 40
Burning decrement% ≤0.2
Water dissolube% ≤ 0.2
Note: We can also offer other grades of Zinc Oxide: 98%, 95%, 92%, 90%...