CaC2
ceramic· CaC2
Calcium carbide (CaC₂) is an inorganic ceramic compound that serves primarily as a chemical precursor rather than a structural engineering material. It is most widely used in acetylene gas generation for welding and cutting torches, and as a raw material in the synthesis of cyanamide and other nitrogen-containing chemicals. Engineers select calcium carbide for applications where its reactivity with water to produce acetylene is essential, or where its role as an intermediate in chemical manufacturing justifies its use despite its brittleness and moisture sensitivity.
acetylene gas generationwelding and cutting torch fuelchemical synthesis precursorcyanamide productioncalcium carbide lamps (historical)
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | — | ksi | — | — | |
| ↳ | — median of 2 measurements | ksi | — | — | |
Poisson's Ratio(ν) | — | - | — | — | |
Shear Modulus(G)2 entries | — | ksi | — | — | |
| ↳ | — median of 2 measurements | ksi | — | — |
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 | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Dielectric Constant (Relative Permittivity)(εr) | — | - | — | — | |
Magnetic Moment(μB) | — | µB | — | — | |
Piezoelectric Modulus(eij) | — | C/m² | — | — | |
Seebeck Coefficient(S) | — | µV/K | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf)2 entries | — | eV/atom | — | — | |
| ↳ | — | 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.