CaB4O7

calcium tetraborate · calcium borate

Calcium tetraborate is a stable, insulating borate compound primarily utilized in the production of specialized glasses and optical materials.

BCaO
Crystal structure of CaB4O7
Ground-state structure · Materials Project
Overview

About calcium tetraborate

Calcium tetraborate is a thermodynamically stable inorganic compound composed of calcium, boron, and oxygen. As a wide-gap insulator, it maintains structural integrity under various conditions, making it a reliable candidate for specialized material synthesis and industrial processing.

Its significance lies in its role as a stable host matrix for various technological applications. The compound is frequently utilized in the development of advanced glass materials and optical components where its insulating nature and chemical robustness provide essential performance advantages.

At a glance

Key Properties

Cross-validated computational properties for calcium tetraborate, aggregated across 3 databases.

Band Gap

5.79–6.32 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

6
3 databases, 2 space groups
Uses

Applications

Where calcium tetraborate is used.

Optical glass manufacturingCeramic additivesFluxing agents in metallurgy
Reference

Frequently Asked Questions

Common questions about calcium tetraborate, answered from cross-validated data.

What is CaB4O7?

Calcium tetraborate is a stable, insulating borate compound primarily utilized in the production of specialized glasses and optical materials.

More questions
What is CaB4O7 used for?
calcium tetraborate (CaB4O7) is used in optical glass manufacturing, ceramic additives, and fluxing agents in metallurgy.
What is the band gap of CaB4O7?
calcium tetraborate (CaB4O7) has a DFT-computed band gap of 5.79–6.32 eV across 6 reported structures.
Is CaB4O7 a metal, semiconductor, or insulator?
With a wide band gap up to 6.32 eV it is an insulator / wide-band-gap material.
Is CaB4O7 thermodynamically stable?
Yes — calcium tetraborate (CaB4O7) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of CaB4O7 are known?
6 structures of CaB4O7 are reported across 3 databases, spanning 2 distinct space groups.
What elements does CaB4O7 contain?
calcium tetraborate (CaB4O7) contains B, Ca, and O (3 elements).
Where does the data for CaB4O7 come from?
CaB4O7 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a stable member of the borate family, this compound serves as a fundamental building block for structural glass networks. It occupies a distinct position in material science due to its thermodynamic stability and favorable insulating characteristics, which allow it to function effectively in environments where thermal and electrical resistance are critical requirements.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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