K3AlO3 — Properties & Data | MatWorld

K3AlO3

ceramic

· JVASP-10486· K3AlO3

K3AlO3 is a potassium aluminate ceramic compound belonging to the family of alkali metal aluminates. While not a widely commercialized engineering ceramic, potassium aluminates are primarily studied and used in specialized applications requiring strong alkaline bonding properties and thermal stability. This material family is notable in refractory systems, cement chemistry, and adhesive formulations where the unique bonding characteristics of alkali aluminates provide advantages over conventional ceramic binders in high-temperature or chemically aggressive environments.

refractory bindershigh-temperature adhesivescement chemistry researchalkali-activated materialsspecialty ceramics developmentchemical processing equipment

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.628	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.259	eV	DFT · OptB88vdW
↳	5.793	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.860	-	DFT · OptB88vdW
↳	2.324	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000882	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000177	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-128.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	438.9	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.221	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.

K3AlO3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental