Physical and chemical properties: the molecular weight of 325.84, white amorphous powder. 6.51 g/cm3 density. Melting point 2217 ℃, 4200 ℃ boiling point, slightly soluble in water, soluble in acid and the generated corresponding salts. Lou for easy absorption air carbon dioxide and water gradually turned into a la carbonate.

Areas of application: la of very extensive, such as applied to piezoelectric materials, electric heat materials, thermoelectric materials, magnetic resistance materials, luminescence materials (LAN powder), hydrogen storage material, optical glass, laser material, all kinds of alloy material, etc. It is also applied to many organic chemical products of preparation of catalysts, light conversion agricultural film also use weapons, be in abroad, the scientists on the role of the crops (with "super calcium” laudatory name.