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.[2][3]

Zirconium(IV) hydroxide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.959
EC Number
  • 238-472-7
UNII
  • InChI=1S/4H2O.Zr/h4*1H2;/q;;;;+4/p-4 Y
    Key: HAIMOVORXAUUQK-UHFFFAOYSA-J Y
  • InChI=1/4H2O.Zr/h4*1H2;/q;;;;+4/p-4
    Key: HAIMOVORXAUUQK-XBHQNQODAM
  • [Zr+4].[OH-].[OH-].[OH-].[OH-]
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
GHS classification and labelling:[1]
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references

These materials are generated by mild base hydrolysis of zirconium halides and nitrates. A typical precursor is zirconium oxychloride.[2]

References
  1. "Zirconium hydroxide". pubchem.ncbi.nlm.nih.gov.
  2. 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.
  3. "Zirconium Hydroxide". Product Identification. ChemicalLAND21.com. Retrieved 2007-10-25.


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