Na2O — Properties & Data | MatWorld

Na2O

Name: Na2O
Brand: MatWorld

ceramic

· Na2O

Sodium oxide (Na2O) is a basic ceramic compound and a key constituent of soda-lime silicate glasses rather than a standalone engineering material. It functions as a flux and network modifier in glass compositions, lowering melting temperatures and improving workability while affecting the final glass properties. Na2O is encountered by engineers primarily through its role in common glass formulations, optical coatings, and ceramic glazes, where it enables cost-effective manufacturing of consumer and industrial glass products.

soda-lime glass formulationsceramic glazes and fritsoptical glass modifiersindustrial glass manufacturingflux in ceramic processing

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	45.64	GPa	DFT
↳	52.39	GPa	DFT · OptB88vdW
↳	45.94	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.4210	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2500	-	DFT · OptB88vdW
↳	0.2290	-	DFT · PBE
Shear Modulus(G)3 entries	30.19	GPa	DFT
↳	31.51	GPa	DFT · OptB88vdW
↳	30.42	GPa	DFT · PBE

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.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.633	kg/m³	DFT · OptB88vdW

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

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)	2.097	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)2 entries	18.03	-	DFT · OptB88vdW
↳	7.570	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.204	-	DFT · OptB88vdW
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.02858	C/m²	DFT · OptB88vdW
↳	9.619	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE

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.

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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.08940	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-1.341	eV/atom	DFT · OptB88vdW
↳	-1.434	eV/atom	Measured

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.

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.

Na2O

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental