| Formula / Notation | Zr |
|---|---|
| CAS Number | 7440-67-7 |
| Molecular Weight | 91.22 |
| Melting Point | 1855.0 |
| Boiling Point | 4409.0 |
| Density | 6.52 |
| Solubility | Insoluble in water |
| Appearance | Lustrous, grey-white metal |
| Also Known As | Zr, zirconium metal |
| Category | Elements |
What is Zirconium?
Zirconium is a lustrous, grey-white transition metal, atomic number 40. Exceptionally corrosion resistant and has low neutron absorption cross-section, making it ideal for nuclear reactor fuel cladding. Zirconium oxide (ZrO2) is used as a ceramic and in cubic zirconia gemstones.
Formula & Notation
IUPAC Name: Zirconium
Other Names / Synonyms: Zr, zirconium metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 1855.0 |
| Boiling Point | 4409.0 |
| Density | 6.52 |
| Molecular Weight | 91.22 |
| Solubility | Insoluble in water |
| Appearance | Lustrous, grey-white metal |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Zirconium is a lustrous, grey-white transition metal, atomic number 40. Exceptionally corrosion resistant and has low neutron absorption cross-section, making it ideal for nuclear reactor fuel cladding. Zirconium oxide (ZrO2) is used as a ceramic and in cubic zirconia gemstones.
Nuclear reactor fuel cladding (most important use - low neutron absorption). Zirconia (ZrO2) ceramic (thermal barrier coatings, dental crowns, cubic zirconia). Chemical industry vessels (corrosion resistant). Zirconium alloys in aerospace. Detonator ignition. Photoflash bulbs.
Zirconium powder: highly flammable, pyrophoric when finely divided - serious fire hazard. Bulk metal: relatively non-toxic, biocompatible. ZrCl4: irritant, reacts with moisture. Zirconium compounds generally low toxicity.
The formula or notation for Zirconium is: Zr