Zirconium(IV) sulfate

Zirconiumorthosulfat

Colorless solid

Fixed

• 3.22 g · cm -3
• 2.85 g · cm -3 ( tetrahydrate)

Soluble in water (tetrahydrate 525 g · l-1 at 18 ° C )

1,646

Attention

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Zirconium (IV ) sulfate is an inorganic chemical compound consisting of the group of sulfates.

Production and representation

Zirconium (IV ) sulfate tetrahydrate, can be obtained by reacting zirconium oxychloride with sulfuric acid. If a SO3 content exceeded 64%, as falling acidic sulfates such as Zr ( SO4) 2 · H2SO4 · 2H2O or Zr ( SO4) 2 · H2SO4 · H2O from. The anhydrate obtained by fuming the tetrahydrate or the Zirconiumoxidchlorides with concentrated sulfuric acid.

Properties

Zirconium ( IV ) sulfate tetrahydrate has an orthorhombic crystal structure with space group Fddd (a = 1162 pm, b = 2592 pm, c = 5532 pm ). The anhydrate is a microcrystalline powder, which is very hygroscopic. In air, it forms an unstable first solution from which crystallized, the normal tetrahydrate. Upon heating the tetrahydrate at 100 ° C crystal water is released and it forms the trihydrate, at 380 ° C then the anhydrate. It is also a 5 - to 7 - hydrate known.

Use

Zirconium (IV ) sulfate can be used as an intermediate for the purification of zirconium salts such as zirconium (IV ) chloride by reprecipitation.