NaAlSiO4

ceramic

· JVASP-97007· NaAlSiO4

Sodium aluminum silicate (NaAlSiO4) is an inorganic ceramic compound belonging to the aluminosilicate family, commonly known as nepheline when occurring naturally or as a synthetic phase in industrial ceramics. It serves as a key constituent in feldspathoid ceramics, glass-ceramics, and refractory compositions, where it lowers melting temperatures and improves sintering behavior compared to pure silicates. Engineers select this material for applications requiring cost-effective alkali-containing ceramics with moderate thermal stability, such as in glass manufacture, ceramic tiles, and specialized refractories where alkali flux contribution is beneficial.

ceramic tile productionglass-ceramic manufacturerefractory liningsfeldspar replacement in ceramicslow-temperature sintering applicationsindustrial glass melting

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.08988	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	4.618	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	6.113	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.357	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.02831	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000597	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000291	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-98.35	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	443.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.6889	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.222	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

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.

NaAlSiO4 — Properties & Data | MatWorld

NaAlSiO4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental