Potassium tungstate

Potassium tungstate
Potassium tungstate
Are common
Systematic ; name	Potassium tungstate
Traditional names	Potassium Tungsten
Chem. formula	K 2 WO 4
Physical properties
condition	clear crystals
Molar mass	326.03 g / mol
Density	2.83; 3.12 g / cm³
Thermal properties
T. melt.	921 ° C
Classification
Reg. CAS number	7790-60-5
Pubchem
Reg. EINECS number
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Potassium tungstate - an inorganic compound, a salt of potassium and tungstic acid with the formula K ₂ WO ₄ , colorless crystals, soluble in water, forms a crystalline hydrate .

Getting

By dissolving tungsten (VI) oxide in a solution or melt of potassium hydroxide .

{\mathsf {WO_{3}+2KOH\rightarrow K_{2}WO_{4}+H_{2}O}}

{\ displaystyle {\ mathsf {WO_ {3} + 2KOH \ rightarrow K_ {2} WO_ {4} + H_ {2} O}}}

The fusion of potassium carbonate with tungsten (VI) oxide:

{\mathsf {WO_{3}+K_{2}CO_{3}\rightarrow K_{2}WO_{4}+CO_{2}}}

{\ displaystyle {\ mathsf {WO_ {3} + K_ {2} CO_ {3} \ rightarrow K_ {2} WO_ {4} + CO_ {2}}}

Physical Properties

Potassium tungstate forms colorless crystals.

It is well soluble in water, poorly soluble in ethanol .

Forms crystalline hydrate of the composition K ₂ WO ₄ • 2H ₂ O, colorless crystals with a density of 3.11 g / cm ³.

Literature

Chemical Encyclopedia / Redkol .: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - T. 1. - 623 p.
Chemist Handbook / Redkol .: Nikolsky B.P. et al. - 3rd ed., Rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Ripan R., Chetyanu I. Inorganic chemistry. Metal Chemistry. - M .: Mir, 1972. - T. 2. - 871 p.
CRC Handbook of Chemistry and Physics . - 89th edition. - Taylor and Francis Group, LLC, 2008-2009.

Potassium tungstate

Getting

Physical Properties

Literature

See also

More articles:

Potassium tungstate
Are common
Systematic name	Potassium tungstate
Traditional names	Potassium Tungsten
Chem. formula	K ₂ WO ₄
Physical properties
condition	clear crystals
Molar mass	326.03 g / mol
Density	2.83; 3.12 g / cm³
Thermal properties
T. melt.	921 ° C
Classification
Reg. CAS number	7790-60-5
Pubchem
Reg. EINECS number
SMILES
Inchi
Chemspider