Zirconium(IV) hydroxide
Zirconium (IV) hydroxide, often called hydrous zirconia is an ill-defined material or family of materials variously described as and . All are white solids with low solubility in water. These materials are widely employed in the preparation of solid acid catalysts.[1][2]
| Identifiers | |
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3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.034.959  |
PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| Zr(OH)4 | |
| Molar mass | 159.253 g/mol |
| Appearance | white filter cake |
| Density | 3.25 g/cm3, solid |
| Melting point | 550 °C (1,022 °F; 823 K) decomposes |
| 0.02 g/100 mL (20 °C) | |
| Hazards | |
EU classification (DSD) (outdated) |
not listed |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 verify (what is  ?) | |
| Infobox references | |
These materials are generated by mild base hydrolysis of zirconium halides and nitrates. A typical precursor is zirconium oxychloride.[1]
References
- Chen, Fang Ren; Coudurier, Gisele; Joly, Jean Francois; Vedrine, Jacques C. (1993). "Superacid and catalytic properties of sulfated zirconia". Journal of Catalysis. 143 (2): 616–26. doi:10.1006/jcat.1993.1304.
- "Zirconium Hydroxide". Product Identification. ChemicalLAND21.com. Retrieved 2007-10-25.
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