CaB4O7

Name: CaB4O7
Brand: MatWorld

ceramic

· CaB4O7

Calcium tetraborate (CaB4O7) is an inorganic ceramic compound belonging to the borate family, commonly known as colemanite when found as a natural mineral. It is primarily used in glass and ceramic formulations where its boron content improves thermal stability, chemical durability, and workability, making it a key raw material in the ceramics and glass industries rather than a standalone engineering material.

glass productionceramic glazes and fritsrefractory materialsthermal insulation coatingsboron source for specialty ceramicsglass fiber reinforcement

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1192	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	6.374	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	13.63	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.175	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.6274	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000890	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000807	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-304.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	399.6	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-2.784	eV/atom	DFT · OptB88vdW
↳	-2.885	eV/atom	Measured

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.

CaB4O7 — Properties & Data | MatWorld

CaB4O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental