KMgP3O9 — Properties & Data | MatWorld

KMgP3O9

ceramic

· JVASP-49179· KMgP3O9

KMgP₃O₉ is a magnesium potassium polyphosphate ceramic compound belonging to the phosphate ceramic family, characterized by a three-dimensional framework of phosphate groups bonded through magnesium and potassium cations. This material is primarily investigated in research contexts for applications requiring thermal stability, chemical inertness, and low thermal expansion, with potential use in high-temperature insulation, refractory applications, and phosphate-based glass-ceramic systems. Its selection over traditional silicate ceramics would be driven by superior chemical durability in acidic or moist environments and applicability in specialized thermal management scenarios where polyphosphate chemistry provides advantages.

thermal insulation compositesrefractory coatingsphosphate-bonded ceramicshigh-temperature structural applicationschemical-resistant matricesresearch materials development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.646	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	5.249	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	5.437	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.587	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1066	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000907	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000689	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-139.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	353.3	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.465	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.

KMgP3O9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental