Nickel carbonate, also known as nickel(II) carbonate, is a green crystalline solid that is insoluble in water. It is commonly used as a precursor for the production of other nickel compounds, catalysts, and pigments. Nickel carbonate finds applications in the ceramics industry for the production of porcelain enamel, in the production of batteries, as a catalyst in organic synthesis, and as a pigment in paints and coatings.