Cryolite is also known as sodium hexafluoroaluminate or sodium aluminum fluoride. Its molecular formula is Na3AlF6, white fine crystal, odorless, solubility is larger than natural cryolite, specific gravity is 3, hardness is 2~3, melting point is 1009℃, easy to absorb water and get wet.Cryolite is mainly used as the flux for aluminum electrolysis, wear-resistant filler for rubber and grinding wheels, enamel whitening agent, glass light-screening agent and metal flux, pesticides for crops, etc.

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