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â… Cryolite is a mineral known as Na3AlF6, belonging to white monoclinic system (at 109 centigrade), lightly dissovled in water and can be dissovled in alumina. It is used as flux in electrolyse aluminum operation, and sunscreen for the making
of ivory glass and porcelain enamel.Cryolite’s molecular formula is Na3AlF6, molecular weight is 209.94. it is a complex. Its color varies to white, gray white,yellow powder or crystal grain with different impurity degree. Its melting point is 1025℃, bulk density 0.6~1.0g/L, true density 2.95~3.05g/cm3, heat of formation 225KJ, proportion 2.75~3.00g/cm3, and heat of fusion is 107KJ.
â…¡It is widely used as flux of electrolyse aluminum; or Anti-Wear ,Additive for abrasive product, which can effectively enhance grinding wheel’s wearing, cutting, and chopping power, as well as prolong the grinding wheel’s life and storage time; it is also the flux for ferroalloy and rimmingsteel, flux for nonferrous metal, deoxidizer for foundry, polymerization catalyst for chain alkylation, as well as antireflecting glass paste, emulsifying agent for porcelain enamel, opacifier for glass, flux for welding material, filler for chinaware and pesticide etc.
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