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Molecular formula：CaF₂
Molecular weight：78.075
CAS No：7789-75-5
Properties：White powder or colorless crystal, insoluble in water, slightly soluble in inorganic acids.
Application：Can be used as a flux for hard alloys, casting molds, ceramics, and glass to increase the melting temperature and hardness of materials. In the glass industry, calcium fluoride is used as a flux to promote the melting of glass raw materials; In the ceramic industry, it is used for coloring and melting aids; As a desulfurizer for cast iron, it reduces the sulfur content in cast iron and improves its quality; Used for producing hydrofluoric acid; Used in oilfield drilling operations to increase the density and viscosity of drilling fluid and improve its performance; It can also be used for industrial wastewater treatment to reduce the pollution of heavy metal ions to the environment.