Zirconium dioxide
Chemical Name: Zirconium dioxide
CAS No.: 1314-23-4
Appearance: White powder
Molecular Formula: O2Zr
Molecular weight: 123.22
Sample: Available
Zirconium dioxide (zirconia) industrial product purity ≥ 99%, white odorless crystalline solid. Melting point 2700℃, boiling point 4300℃. Vapor pressure negligible (25℃), relative density 5.85 (20℃). Solubility in water: insoluble, soluble in hot concentrated sulfuric acid and hydrofluoric acid, insoluble in dilute acids. Stable, incompatible with strong alkalis at high temperature.
Parameters
| Item | Value |
| Melting point | 2700 °C(lit.) |
| Boiling point | 5000 °C(lit.) |
| density | 5.89 g/mL at 25 °C(lit.) |
| Fp | 5000°C |
| storage temp. | Store at room temperature |
| solubility | insoluble |
| form | powder |
| color | White |
| Specific Gravity | 5.89 |
| PH | 4-5 |
| Resistivity | 2.3 × 10*10 (ρ/μΩ.cm) |
| Water Solubility | insoluble |
| Crystal Structure | Monoclinic; Tetragonal; Cubic |
| crystal system | Monoclinic |
| Merck | 14,10180 |
| Space group | P21/c |
| Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.515050.520310.531549099.194900.1406 |
| Exposure limits | ACGIH: TWA 5 mg/m3; STEL 10 mg/m3 NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3 |
| Dielectric constant | 12.5（0.0℃） |
| Stability: | Stable. |
| InChIKey | RVTZCBVAJQQJTK-UHFFFAOYSA-N |
| CAS DataBase Reference | 1314-23-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Zirconium dioxide(1314-23-4) |
| EPA Substance Registry System | Zirconium oxide (1314-23-4) |
Safety Information
| Item | Info |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36/37-39-36 |
| HS Code | 28256000 |
Product Application of Zirconium dioxideCAS#1314-23-4
Zirconium dioxide (ZrO2) as an abrasive is used to make grinding wheels and special sandpaper. It is also used in ceramic glazes, in enamels, and for lining furnaces and high-temperature molds. It resists corrosion at high temperatures, making it ideal for crucibles and other types of laboratory ware. ZrO2 is used as a “getter” to remove the last trace of air when producing vacuum tubes.
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