Cryolite

Cryolite (CAS 15096-52-3), also sold under the trade name Cryocide, is a synthetic sodium aluminum fluoride mineral used as a flux and electrolyte medium in industrial processing.

Where is Cryolite used?

• Aluminum smelting: molten bath electrolyte in Hall-Héroult cells, dissolving alumina at high temperatures for electrochemical reduction into metal
• Agrochemicals: registered pesticide active ingredient for control of chewing insects on crops
• Abrasives: filler and grinding aid in resin-bonded grinding wheels and coated abrasives
• Pulp and paper: opacifying agent and filler that improves sheet brightness and printability
• It is produced commercially to replace depleted natural mineral deposits.

Good to know: Pesticide-grade material is offered in select markets where regulatory approvals are maintained.

Commercial specifications

• Fine white powder in bulk, supersacks, and bagged formats
• Purity specifications typically aligned to industry standards