Ccobaltous oxide(cobalt monoxide, cobalt trivalent oxide)

Molecular formula:CoO or Co2O3
Molecular weight:74.93 or 165.88
Property:Cobalt monoxide: celandine green powder,density:6.45g/cm3,melting point1935,cobalt trivalent oxide: grey black powder,density:5.18g/cm3,it is decomposed into cobalt monoxide when heated to 895,The proportion between them depends on the temperature and burning time. Insoluble in water, alcohol,ammonia water, soluble in acid and hydrate solution.

Specification:GB6518-86(T type)

Index name Grade One Grade Two Special grade
Content (Co) % ≥ 74 70 72
Iron (Fe)% ≤ 0.1 0.1 0.1
Manganese (Mn)% ≤ 0.1 0.1 0.1
Copper(Cu)% ≤ 0.05 0.05 0.05
Zinc (Zn)% ≤ 0.05 0.1 0.1
Lead (Pb)% ≤ 0.006 0.006 0.006
Arsenic (As)% ≤ 0.005 0.005 0.005
Cadmium (Cd)% ≤ 0.006 0.006 0.006
Nickle (Ni)% ≤ 0.05 0.1 0.1
Fineness -350 mesh -350 mesh -350 mesh

Note:This standard is applicable to ceramic flaze pigment,the mixture of Cobalt monoxide and cobalt trivalent oxide.

Application area:Used in preparing cobalt salts, pigment and ceramic glaze,also used as oxidant and catalyzer. And it is the adhesive agent for glass, ceramic, magnetic material and colorant for some pigments.

Packing:25kg pail


 
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