Tungsten dioxide dichloride

Tungsten dioxide dichloride
Tungsten dioxide dichloride
Are common
Systematic ; name	Tungsten dioxide dichloride
Traditional names	tungsten chloride
Chem. formula	WO 2 Cl 2
Physical properties
condition	yellow-red crystals
Molar mass	286.74 g / mol
Thermal properties
T. melt.	265 ° C
Classification
Reg. CAS number	13520-76-8
Pubchem
Reg. EINECS number
SMILES
Inchi
Reg. EC number	236-862-1

Tungsten dioxide dichloride is an inorganic compound, an oxo salt of tungsten metal and hydrochloric acid with the formula WO ₂ Cl ₂ , yellow-red crystals, reacts with water.

Content

Getting

Effect of chlorine on tungsten (VI) oxide when heated:

{\mathsf {2WO_{3}+2Cl_{2}\ {\xrightarrow {700^{o}C}}\ 2WO_{2}Cl_{2}+O_{2}}}

{\ displaystyle {\ mathsf {2WO_ {3} + 2Cl_ {2} \ {\ xrightarrow {700 ^ {o} C}} \ 2WO_ {2} Cl_ {2} + O_ {2}}}

The effect of hydrogen chloride on tungsten (VI) oxide when heated:

{\mathsf {WO_{3}+HCl\ {\xrightarrow {400^{o}C}}\ WO_{2}Cl_{2}+H_{2}O}}

{\ displaystyle {\ mathsf {WO_ {3} + HCl \ {\ xrightarrow {400 ^ {o} C}} \ WO_ {2} Cl_ {2} + H_ {2} O}}}

Effect of chlorine on tungsten (IV) oxide when heated:

{\mathsf {WO_{2}+Cl_{2}\ {\xrightarrow {540^{o}C}}\ WO_{2}Cl_{2}}}

{\ displaystyle {\ mathsf {WO_ {2} + Cl_ {2} \ {\ xrightarrow {540 ^ {o} C}} \ WO_ {2} Cl_ {2}}}

Effect of calcium chloride on tungsten (VI) oxide when heated:

{\mathsf {2WO_{3}+CaCl_{2}\ {\xrightarrow {800-900^{o}C}}\ WO_{2}Cl_{2}+CaWO_{4}}}

{\ displaystyle {\ mathsf {2WO_ {3} + CaCl_ {2} \ {\ xrightarrow {800-900 ^ {o} C}} \ WO_ {2} Cl_ {2} + CaWO_ {4}}}

Physical Properties

Tungsten dioxide dichloride forms yellow-red crystals, easily purified by sublimation .

Reacts with water. It is poorly soluble in ethanol .

Chemical Properties

Reacts with water:

{\mathsf {WO_{2}Cl_{2}+H_{2}O\ {\xrightarrow {}}\ WO_{3}+2HCl}}

{\ displaystyle {\ mathsf {WO_ {2} Cl_ {2} + H_ {2} O \ {\ xrightarrow {}} \ WO_ {3} + 2HCl}}}

Decomposes when heated:

{\mathsf {2WO_{2}Cl_{2}\ {\xrightarrow {T}}\ WOCl_{4}+WO_{3}}}

{\ displaystyle {\ mathsf {2WO_ {2} Cl_ {2} \ {\ xrightarrow {T}} \ WOCl_ {4} + WO_ {3}}}

Reacts with tungsten (VI) chloride when heated:

{\mathsf {WO_{2}Cl_{2}+WCl_{6}\ {\xrightarrow {T}}\ 2WOCl_{4}}}

{\ displaystyle {\ mathsf {WO_ {2} Cl_ {2} + WCl_ {6} \ {\ xrightarrow {T}} \ 2WOCl_ {4}}}}

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.