Potassium hexafluorozirconate (IV)

Hexafluorozirconate
Hexafluorozirconate
General
Systematic ; name	Potassium hexafluorozirconate (IV)
Chem. formula	K 2 ZrF 6
Physical properties
condition	colorless crystals
Molar mass	283.41 g / mol
Density	3.48; 3.58 g / cm³
Chemical properties
Solubility in water	0.78 2 g / 100 ml
Classification
Reg. CAS number	16923-95-8
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Potassium hexafluorozirconate (IV) is an inorganic compound, a complex potassium and zirconium fluoride with the formula K ₂ ZrF ₆ , colorless crystals, moderately soluble in water.

Content

1 Receiving
2 Physical properties
3 Application
4 Literature

Getting

Precipitation from solutions:

{\mathsf {2KF+ZrF_{4}\ {\xrightarrow {}}\ K_{2}ZrF_{6}\downarrow }}

{\ displaystyle {\ mathsf {2KF + ZrF_ {4} \ {\ xrightarrow {}} \ K_ {2} ZrF_ {6} \ downarrow}}}

{\mathsf {2KCl+(NH_{4})_{2}ZrF_{6}\ {\xrightarrow {}}\ K_{2}ZrF_{6}\downarrow +2NH_{4}Cl}}

{\ displaystyle {\ mathsf {2KCl + (NH_ {4}) _ {2} ZrF_ {6} \ {\ xrightarrow {}} \ K_ {2} ZrF_ {6} \ downarrow + 2NH_ {4} Cl}}}

In industry, sintering ore zircon concentrates with K ₂ SiF ₆ at 600-700 ° C.

Physical Properties

Potassium hexafluorozirconate (IV) forms colorless crystals of monoclinic syngony, space group C 2 / c , cell parameters a = 0.6572 nm, b = 1.1442 nm, c = 0.6942 nm, β = 90.3 °, Z = four.

Slightly soluble in water.

Application

An intermediate product in the electrolytic production of zirconium.

Literature

Chemical Encyclopedia / Editorial: Zefirov N.S. et al. - M .: Big Russian Encyclopedia, 1998. - V. 5. - 783 p. - ISBN 5-85270-310-9 .
CRC Handbook of Chemistry and Physics . - 89th Edition. - Taylor and Francis Group, LLC, 2008-2009.