CaCO3
ceramic· CaCO3
Calcium carbonate (CaCO₃) is an abundant, inorganic ceramic compound commonly found in nature as limestone, chalk, and marble. It is widely used in construction materials, fillers, and chemical applications due to its low cost, availability, and adequate stiffness for non-structural roles. Engineers select CaCO₃ for applications where cost-effectiveness and chemical inertness are priorities, though its brittleness and moderate strength limit it to non-load-bearing or secondary structural roles compared to advanced ceramics.
concrete and cement extendersindustrial mineral fillerpharmaceutical and food additivespaper and plastics reinforcementchemical feedstockenvironmental remediation
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 80.08 | GPa | — | ||
Exfoliation Energy(Eexf) | 247.9 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.3200 | - | — | ||
Shear Modulus(G) | 35.31 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.933 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.240 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 176.5 | - | — | ||
| ↳ | 5.772 range 2.786–8.759median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.4644 | C/m² | — | ||
Seebeck Coefficient(S) | -208.5 | µV/K | — |
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.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00650 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -2.502 | eV/atom | — | ||
| ↳ | -2.404 | eV/atom | — |
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.
Verified Unverified Low confidence (<80%) Link to source
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.