Na2SiF6
ceramic· Na2SiF6
Sodium hexafluorosilicate (Na₂SiF₆) is an inorganic ceramic compound commonly used as a fluorinating agent and glass additive in industrial chemistry. It serves primarily in aluminum production (cryolite substitute), glass manufacturing, and metal surface treatment, where its fluorine content enables effective fluxing and processing. Engineers select this material for applications requiring controlled fluorination or where cost-effective alternatives to cryolite are needed, though handling requires attention to fluoride toxicity and reactivity with moisture.
aluminum smelting fluxglass production additivesmetal surface treatmentfluorine source compoundsceramic precursorsindustrial chemical processing
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 43.81 | GPa | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 23.19 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.818 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 7.266 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 4.656 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -103.5 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.05140 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -3.354 | eV/atom | — | ||
| ↳ | -3.157 | 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.