Zirconium(IV) sulfate

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Zirconium(IV) sulfate
Identifiers
CAS number 111378-69-9 14644-61-2, 111378-69-9 N
7446-31-3 (tetrahydrate)
PubChem 16213785
RTECS number ZH9100000
Properties
Molecular formula Zr(SO4)2(H2O)x ( x = 0, 4, 5, 7)
Molar mass 285.35 g/mol (anhydrous)
355.41 g/mol (tetrahydrate)
Appearance white solids
Density 3.22 g/cm3 (anhydrous)
Solubility in water 52.5 g/100 mL (tetrahydrate)
Structure
Crystal structure orthorhombic
Hazards
EU Index Not listed
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Zirconium(IV) sulfate is the name for a family of inorganic compounds with the formula Zr(SO4)2(H2O)n where n = 0, 4, 5, 7. These species are related by the degree of hydration. They are white or colourless solids that are soluble in water.

Preparation and structure[edit]

Zirconium sulfate is prepared by the action of sulfuric acid on zirconium oxide:

ZrO2 + 2 H2SO4 + H2O → Zr(SO4)2(H2O)x

The anhydrous sulfate is also known.

These compounds adopt complex structures featuring 7- and 8-coordinated Zr centres. Both water and sulfate serve as ligands.[1][2]

Uses[edit]

Zirconium sulfate is used in tanning white leather, as a catalyst support, to precipitate proteins and amino acids, and as a pigment stabilizer.

References[edit]

  1. ^ Bear, Isabel J.; Mumme, W. G. "Crystal chemistry of zirconium sulfate. III. Structure of the β-pentahydrate, Zr2(SO4)4(H2O)8.2H2O, and the interrelationship of the four higher hydrates" Acta Cryst. 1969. B25, 1572-1581. doi:10.1107/S0567740869004341
  2. ^ Squattrito, Philip J.; Rudolf, Philip R.; Clearfield, Abraham "Crystal structure of a complex basic zirconium sulfate" Inorganic Chemistry 1987, vol. 26, 4240-4.doi:10.1021/ic00272a020