Cryolite-Sodium Fluosilicate Flux Powder
Synthetic cryolite (sodium aluminum fluoride) blended with sodium fluosilicate for aluminum foundry fluxes to reduce metal oxidation. HTS 3824.99.39.90 for multi-fluoride inorganic mixtures in non-ferrous casting. Lowers melting point and improves metal fluidity.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily synthetic cryolite
High cryolite content classifies as specific fluoride-aluminum complex
If supplied as aqueous solution
Liquid flux preparations classify separately from dry powders
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Import Tips & Compliance
• Include melting point depression specifications; certify fluoride evolution control measures; comply with aluminum smelter emission standards documentation
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