Cobalt carbonate extra pure

Cobalt carbonate extra pure, also known as basic cobalt(II) carbonate or cobalt carbonate hydroxide, is a pale purple to pink crystalline powder with high purity used in chemical synthesis, pigments, and catalysts.​

Identity and Composition

Chemical name: Basic cobalt(II) carbonate; cobalt carbonate hydroxide.​

Molecular formula: CoCO₃ (for cobalt(II) carbonate), often present as basic carbonate Co₂(CO₃)₃·xH₂O.​

Molecular weight: Approximately 118.94 g/mol.​

Grade specifications: Extra pure with assay typically >98%, insoluble in water and alcohol, soluble in acids.​

Physical Properties

Appearance: Pale purple to pink crystalline powder.​

Density: Approx. 4.13 g/cm³.​

Decomposition: Decomposes on heating rather than melting, releasing CO₂ to form cobalt oxides.​

Solubility: Insoluble in water and ethanol; soluble in acids forming cobalt salts.​

Typical Uses

Used as a pigment source for ceramics/glazes, precursor for catalysts and cobalt salts, and in materials chemistry for battery and electronics applications.​

Handling and Safety

Stable under normal conditions; avoid moisture and incompatible oxidizers. Handle with PPE; harmful if swallowed or inhaled; aquatic toxicant.​

For catalog: “Cobalt carbonate extra pure, CoCO₃ pale purple crystalline powder, assay ≥98%, density 4.13 g/cm³, decomposes on heating, insoluble in water; pigment and catalyst precursor.”​