| Chemical Properties | Back Directory | [Appearance]
Black, brown, yellow to colorless; streak white, luster submetallic to vitreous to greasy. Highly resistant to chemicals. | [Melting point ]
2710℃ [KIR84] | [Boiling point ]
4300℃ [MER06] | [density ]
5.85 [MER06] | [Water Solubility ]
insoluble H2O; slightly soluble HCl, HNO3; soluble in heated mixture of 2 part H2SO4, 1 part H2O [MER06] | [Uses]
Corrosion- and heat-resistant applications, source zirconium. | [CAS DataBase Reference]
12036-23-6 |
| Hazard Information | Back Directory | [Chemical Properties]
Black, brown, yellow to colorless; streak white, luster submetallic to vitreous to greasy. Highly resistant to chemicals. | [Production Methods]
High purity zirconia can be obtained from baddeleyite by leaching with concentrated sulfuric acid or chlorination at high temperatures. The zirconium sulfates and chlorides thus formed are readily separated from the impurities. Zirconia also is made from zircon by electric-arc melting under reducing conditions. |
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