Co3O4 is black or gray-black powder. The bulk density is 0.5-1.5g/cm3, and the tap density is 2.0-3.0g/cm3. Cobalt tetroxide can be slowly dissolved in hot sulfuric acid, but insoluble in water, nitric acid and hydrochloric acid at room temperature. When heated to above 1200 ℃, it will decompose into cobalt oxide. When heated to 900°C in a hydrogen flame, it is reduced to metallic cobalt.
Cobalt oxide powder has the characteristics of small particle size, uniform distribution, large specific surface area, high surface activity, low loose density, less impurity content, spherical and high specific surface area, etc. It meets the requirements of electronic-grade powder materials, and can be widely used in electrical, chemical and alloy material fields.
|Cobalt oxide powder composition|
|Grade||Impurity Contained (wt% max)|
1. Used as colorant and pigment for glass and ceramics, hard alloy;
2. Oxidants and catalysts in the chemical industry;
3. Used in semiconductor industry, electronic ceramics, lithium ion battery cathode materials, magnetic materials, temperature and gas sensors;
4. Used as high purity analytical reagent, cobalt oxide and cobalt salt preparation
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