Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Product Description
Zirconium dioxide (CAS: 1314-23-4), also known as zirconia or zirconium(IV) oxide, is a high-performance inorganic oxide with exceptional thermal stability and chemical resistance. It is widely utilized in advanced ceramics, refractory materials, optical coatings, and as a catalyst support. Its high melting point, excellent mechanical strength, and biocompatibility make it suitable for dental implants and industrial components.
Molecular Formula & Structure
Molecular Formula: ZrO?
Physical Properties
- Appearance: White, odorless crystalline powder
- Melting Point: 2,700–2,715 °C
- Density: ~5.89 g/cm3 (25 °C)
- Solubility: Insoluble in water; soluble in hot concentrated sulfuric acid and hydrofluoric acid
- Stability: Chemically inert under normal conditions; resistant to most acids and bases
- Crystal Forms: Monoclinic (room temp), tetragonal (>1,100 °C), cubic (>1,900 °C)
Chemical Properties
- CAS Number: 1314-23-4; EINECS: 215-227-2
- Chemical Type: Inorganic oxide, ceramic material, refractory agent
- Molecular Weight: 123.22
- Refractive Index: ~2.13–2.2
- Thermal Conductivity: ~1.85 W/(m·K)
- Application Type: Raw material for ceramics, refractories, optical coatings, and dental ceramics
- Toxicity: Low toxicity; may cause mild skin/eye irritation
Synthesis Method
- Raw Materials: Zircon sand (ZrSiO?), caustic soda, hydrochloric acid, precipitant (ammonia)
- Synthesis Route: Alkali fusion → acid leaching → purification → precipitation → calcination
- Reaction Steps: Fuse zircon sand with NaOH at high temperature, leach with HCl to obtain zirconium oxychloride, purify via solvent extraction, precipitate Zr(OH)? with ammonia, then calcine at 800–1,000 °C to produce ZrO? powder
Storage & Safety
- Storage: Store in a sealed, dry place at room temperature; avoid moisture and strong oxidants
- Package: Moisture-proof sealed containers (1 kg/bag, 25 kg/drum)
- Safety: Avoid inhalation of dust; wear protective gloves and goggles; wash skin thoroughly after contact
- Hazard: Thermal decomposition emits no toxic fumes; non-flammable and non-explosive
...
Product
