Na2SiO3
ceramic· Na2SiO3
Sodium silicate (Na2SiO3) is an inorganic ceramic compound commonly produced by melting silica and sodium carbonate at high temperatures, resulting in a glassy solid with strong Si-O bonding. It is widely used in construction materials, adhesives, and chemical processing due to its excellent binding properties, water resistance, and cost-effectiveness compared to organic alternatives. The material is also employed as a binder in refractory compositions, as a consolidant in foundry molds, and in specialty applications such as soil stabilization and detergent formulations.
construction adhesives and bindersrefractory brick and ceramic bondingfoundry sand bindersoil stabilizationglass and silicate coatingswater treatment and chemical processing
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 66.67 | GPa | — | ||
Poisson's Ratio(ν) | 0.2700 | - | — | ||
Shear Modulus(G) | 37.70 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.593 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.147 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 6.645 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.5405 | C/m² | — | ||
| ↳ | 0.2267 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -160.2 | 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) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -2.697 | eV/atom | — | ||
| ↳ | -2.511 | 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.