Manganous manganic oxide ( Mn₃O₄ ) is an important basic material for producing soft ferrite core,which has widely applications in communication instruments , computer and electrical home appliances, etc. CR series manganous manganic oxide produced by Kingray , features high purity, large specific surface area and good reaction activity , and mainly used to manufacture high performance manganesezinc core such as high permeability core and low power loss core,etc. Today, two production lines have been established in Kingray and total annual production capacity is over 20000 metric ton.

Techinical Specifications

Items	Indexes (%)
Type	CR-06	CR-06N	CR-15	CR-15N
Chemical compositions(%)
Mn	71.0	71.0	70.0	70.0
SiO2	0.01	0.01	0.01	0.01
CaO	0.01	0.01	0.01	0.01
MgO	0.01	0.01	0.01	0.01
Na2O	0.005	0.005	0.005	0.005
K2O	0.005	0.005	0.005	0.005
Fe2O3	0.70	0.70	0.70	0.70
S	0.05	0.05	0.05	0.05
Se	0.07	0.01	0.07	0.01
Physical property
Moisture(H2O %)	0.5	0.5	1.0	1.0
Specific Surface area(BET m2/g)	57	57	1317	1317
Bulk density(g/cm3)	0.60.8	0.60.8	0.60.8	0.60.8