Light calcium carbonate is made from chemical method. According to the various shapes of calcium carbonate grains, the shapes of light calcium carbonate can be classified as spindle, cube, needle, chain, sphere, plate, and quadrangular prism. Different shapes of calcium carbonate can be obtained by controlling the reaction conditions. The settling volume of light calcium carbonate is over 2.5ml/g; the specific surface area is around 5m2/g. Light calcium carbonate has a high oil absorption value of around 60～90ml/100g due to its fine particulates, rough surface and large specific surface area. White powder or colorless crystal. Odorless.  Flavorless. Light calcium carbonate decomposes into calcium oxide and carbon dioxide at a temperature of 825℃. It will release carbon dioxide when dissolved in diluted acid. It is insoluble in alcohol.