NaAlF2

metal

· JVASP-139135· NaAlF2

Sodium aluminum fluoride (NaAlF₂) is an inorganic ionic compound belonging to the fluoride salt family, commonly encountered as a byproduct or intermediate in aluminum processing and electrochemistry. It is primarily used in the aluminum smelting industry as a flux and electrolyte additive in Hall-Héroult cells, where it lowers the melting point of cryolite-based bath systems and improves electrical conductivity. The compound is valued in molten salt applications and specialized ceramics due to its chemical stability at elevated temperatures and its role in refining aluminum metal quality; engineers select it when thermal stability, ionic conductivity, and corrosion resistance in alkaline fluoride environments are critical.

aluminum smelting and refiningmolten salt electrolytesceramic crucibles and refractory liningsfluoride-based flux systemshigh-temperature industrial chemistry

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,511.4	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	-0.06000	-	DFT · OptB88vdW
Shear Modulus(G)	1,113.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09194	lb/in³	DFT · OptB88vdW

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.4700	eV	DFT · OptB88vdW
↳	1.516	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.715	-	DFT · OptB88vdW
↳	4.076	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	32.16	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.5023	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.273	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

NaAlF2 — Properties & Data | MatWorld

NaAlF2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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