Lightning Protector Zinc Oxide

Weare offering lightning protector zinc oxide is mainly used as making magnetic material of the electronic structural detail- ferrite.
Specification Indices
appearance White powder
Zinc oxide ( on dry sample ) ， %              ≥ 99.70
kalia (on K  ) ， %              ≤ 0.0010
Sodium oxide (on  Na  ) ， %             ≤ 0.0010
Ferric oxide ( on  Fe ) ， %             ≤ 0.0020
Cadmium oxide ( on Cd  ) ， %             ≤ 0.0050
Lead oxide (  Pb  ) ， %             ≤ 0.037
Cupric oxide ( on Cu  ) ， %             ≤ 0.0002
znic ( on Zn ) 无
moisture ， %                            ≤ 0.3
Hcl insoluble ， %                      ≤ 0.006
Burning weight loss ， % ≤ 0.2
PH 值 7.0-8.0
Average grain diameter μm ，                     ≤ 0.50
screenings  ( mesh size 44μm) ， %         ≤ 0.10