Na3 Al1 F6

metal

· Na3 Al1 F6

Na3AlF6, commonly known as cryolite, is an ionic compound and naturally occurring mineral that serves as a flux and electrolyte in industrial processes. This material is primarily valued in the aluminum smelting industry, where it lowers the melting point of alumina and improves electrical conductivity in Hall-Héroult electrolytic cells; engineers select it because it dramatically reduces energy consumption compared to smelting pure alumina alone. Beyond primary aluminum production, cryolite finds applications in specialized glass manufacturing, welding fluxes, and ceramic production where its fluxing properties and thermal stability are advantageous.

aluminum smelting electrolyteindustrial fluxglass manufacturingwelding flux formulationsceramic processingthermal management in high-temperature processing

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	54.72	GPa	—
Shear Modulus(G)	29.13	GPa	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	7.056	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.322	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Na3 Al1 F6

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control