Zirconium nitrate
| Names | |
|---|---|
| IUPAC name
Zirconium(IV) nitrate
| |
| Other names
Tetranitratozirconium
Zirconium tetranitrate | |
| Properties | |
| ZrN4O12 Zr(NO3)4 | |
| Molar mass | 339.243591 g/mol |
| Appearance | Hygroscopic white volatile solid |
| Boiling point | 100 °C (212 °F; 373 K) (decomposes) |
| Very soluble | |
| Solubility | Soluble in alcohols |
| Hazards | |
| Lethal dose or concentration (LD, LC): | |
| LC50 (Median concentration)
|
500 mg/m3 (rat, 30 min) |
| Related compounds | |
| Related compounds
|
Titanium nitrate Hafnium nitrate |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Zirconium nitrate is a volatile anhydrous transition metal nitrate of zirconium with formula Zr(NO3)4.
Contents
Properties
Chemical
Zirconium nitrate decomposes when heated releasing nitrogen dioxide, and leaving behind zirconium dioxide aka zirconia.
Zirconium nitrate can be used as a Lewis acid catalyst in the formation of N-substituted pyrroles.
Anhydrous zirconium nitrate can nitrate some organic aromatic compounds in an unusual way. Quinoline is nitrated to 3-nitroquinoline and 7-nitroquinoline. Pyridine is nitrated to 3-nitropyridine and 4-nitropyridine.
Physical
Zirconium nitrate is a white hygroscopic volatile solid, very soluble in water and alcohols.
Availability
Zirconium nitrate is sold by chemical suppliers, though only the pentahydrate form seems to be sold.
Preparation
Anhydrous zirconium nitrate can by reacting zirconium(IV) chloride with dinitrogen pentoxide.
- ZrCl4 + 4 N2O5 → Zr(NO3)4 + 4ClNO2
The product can be purified by sublimation under vacuum. A contaminating substance in this is nitronium pentanitratozirconate, (NO2)Zr(NO3)5.
Hydrated zirconium nitrate can be prepared by dissolving zirconium dioxide in nitric acid. Zirconium is highly resistant to nitric acid even in the presence of other impurities and high temperatures, thus the pure metal cannot be used instead. The hydrated form cannot be converted into the anhydrous form, as it decomposes.
Projects
- Oxidizing agent
- Compound collecting
Handling
Safety
Zirconium nitrate is a powerful oxidizer and harmful. Proper protection should be worn when handling the compound.
Storage
In dry airtight containers. Schlenck flasks, if available, can also be used.
Disposal
Should be dissolved into cooled water, then a base like sodium hydroxide should be added to precipitate the zircinium dioxide.
