KSiO3 — Properties & Data | MatWorld

KSiO3

ceramic

· KSiO3

Potassium silicate (KSiO₃) is an inorganic ceramic compound combining potassium oxide and silicon dioxide, typically produced as a crystalline solid or used as a binder in its aqueous form. It appears primarily in high-temperature and chemical-resistant applications where alkali silicate chemistry is advantageous, including refractory coatings, ceramic binders, welding rod coatings, and specialized adhesives for heat-resistant assemblies. Compared to sodium silicate alternatives, potassium silicate offers superior thermal stability and is chosen when potassium's specific chemical properties (reactivity, solubility profile, or downstream processing) align with manufacturing or service requirements.

refractory coatings and liningswelding rod bindershigh-temperature ceramic adhesivesinvestment casting shell bindersglass and ceramics manufacturingthermal insulation systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.857	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · PBE
Magnetic Moment(μB)2 entries	0.2734	μB	DFT
↳	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00163	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00162	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	27.39	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	27.24	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.2736	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)3 entries	-2.178	eV/atom	DFT
↳	0.5600	eV/atom	DFT
↳	-1.972	eV/atom	DFT · OptB88vdW

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

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.

KSiO3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental