Strontium carbonate, chemical formula SrCO3, colorless prismatic crystal or white powder. 926 ℃ into the hexagonal system. The melting point is 1497°C (6.08×106Pa), and the relative density is 3.70. Slightly soluble in water, slightly soluble in carbon dioxide saturated solution, soluble in Chemicalbook ammonium chloride, ammonium nitrate and carbonic acid solution. With dilute hydrochloric acid, nitric acid and acetic acid to release carbon dioxide. It starts to decompose at 820℃, gradually loses carbon dioxide at 1340℃, and completely decomposes into strontium oxide and carbon dioxide when it is white hot, and the gas can reach 1.01×105Pa.