Sodium Hexafluoroaluminate molecular formula, granular form, molecular representations, crystal structure (unit cell) diagram | Various sources

Cryolite (Na₃AlF₆) is a sodium aluminium fluoride mineral and one of the most industrially critical inorganic fluorine compounds, serving primarily as the molten electrolyte bath in the Hall-Héroult process for primary aluminium production. Natural cryolite was historically sourced exclusively from a single deposit at Ivittuut (Ivigtut), Greenland — the world's only commercially significant natural occurrence — which was mined to exhaustion by 1987. All industrial cryolite today is synthetic, produced from hydrofluoric acid, sodium carbonate, and aluminium hydroxide.

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