Na4HgP2 — Properties & Data | MatWorld

Na4HgP2

ceramic

· Na4HgP2

Na4HgP2 is an inorganic ceramic compound containing sodium, mercury, and phosphorus elements, representing a specialized phosphide ceramic with potential applications in solid-state chemistry and materials research. This is primarily a research-phase material rather than an established engineering ceramic; compounds in this family are investigated for their structural properties and potential use in electrochemical or thermal applications where mercury-containing phosphides may offer unique electronic or ionic transport characteristics. Engineers would consider such materials in niche applications requiring specific chemical reactivity or phase stability rather than for general-purpose structural or thermal engineering.

solid-state chemistry researchelectrochemical device researchthermal barrier investigationsmercury-based ceramic studiesphosphide material development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	25.42	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)	14.93	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.202	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	0.9420	eV	DFT · OptB88vdW
↳	1.868	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	10.11	-	DFT · PBE
↳	8.076 range 6.163–9.988median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.309	-	DFT · OptB88vdW
↳	5.079	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.5000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.547	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00317	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00206	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-247.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	339.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	25.83	%	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)	0.00380	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3766	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.

Na4HgP2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental