KNaH2 — Properties & Data | MatWorld

KNaH2

ceramic

· JVASP-36118· KNaH2

KNaH₂ is an experimental ionic hydride ceramic composed of potassium, sodium, and hydrogen atoms, representing an emerging class of materials in solid-state chemistry research. This compound belongs to the family of metal hydrides and mixed-alkali hydrides, which are being investigated for energy storage, hydrogen sorption, and solid-state ionic conductor applications. While not yet established in mainstream industrial production, materials in this family show promise for next-generation energy storage systems and hydrogen economy technologies due to their potential for reversible hydrogen uptake and ionic conductivity at moderate temperatures.

hydrogen storage researchsolid-state battery electrolytesenergy storage systemsexperimental materials scienceionic conductor developmentadvanced ceramics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	18.21	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1900	-	DFT · OptB88vdW
Shear Modulus(G)	14.49	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	1.434	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.111	eV	DFT · OptB88vdW
↳	5.574	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	111.6	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.945	-	DFT · OptB88vdW
↳	2.012	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.6233	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.673	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00207	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00113	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-206.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	314.8	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)	0.05580	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2574	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.

KNaH2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental