| Zirconium(IV) hydroxide | |
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| Identifiers | |
| CAS number | 14475-63-9 |
| PubChem | 84465 |
| ChemSpider | 76194 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | Zr(OH)4 |
| Molar mass | 159.253 g/mol |
| Appearance | white filter cake |
| Density | 3.25 g/cm3, solid |
| Melting point |
550°C, decomposes |
| Solubility in water | 0.02 g/100 mL (20 °C) |
| Hazards | |
| EU classification | not listed |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Zirconium (IV) hydroxide is often called hydrous zirconia. It has an indeterminate chemical formula often described as ZrO2.nH2O. The formula ZrO2.2H2O being written as Zr(OH)4 gives rise to its description as a hydroxide. The compound is a toxic, amorphous white powder which is insoluble in water, but is soluble in dilute mineral acids.
It is primarily used as in intermediate for the manufacture of zirconium compounds. It is also used in pigments, glass and dyes. [1]
Zirconium nitrate is prepared by reacting nitric acid with zirconium oxide:
The compound is crystallized as pentahydrate following evaporation to dryness.
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