NaN3 — Properties & Data | MatWorld

NaN3

ceramic

· NaN3

Sodium azide (NaN₃) is an inorganic ceramic compound primarily known as an energetic material and chemical reagent rather than a structural ceramic. It is used industrially as the active component in automotive airbag inflators, where rapid decomposition generates nitrogen gas for rapid inflation, and in specialized applications requiring controlled explosive or propellant behavior. Engineers select NaN₃-based systems for safety-critical applications where reliable, fast gas generation is essential, though its toxic decomposition byproducts and handling hazards require careful system design and containment.

airbag inflatorsgas generation systemspropellant formulationsenergetic materialschemical synthesislaboratory reagent

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	32.62	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3700	-	DFT · OptB88vdW
Shear Modulus(G)	14.25	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	1.930	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.040	eV	DFT · OptB88vdW
↳	5.284	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	6.707	-	DFT · OptB88vdW
↳	5.160	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.414	-	DFT · OptB88vdW
↳	2.854	-	DFT · TBmBJ
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)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00185	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000994	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-256.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	422.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00300	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1485	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.

NaN3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental