Tungsten Bromide (II)

Tungsten bromide
Tungsten bromide
General
Systematic ; name	Tungsten Bromide (II)
Traditional names	tungsten bromide; tungsten dibromide hexamer
Chem. formula	Wbr 2
Physical properties
condition	blue-black crystals
Molar mass	343.67 g / mol
Thermal properties
T. melt.	decomp. 400 ° C
Classification
Reg. CAS number

Tungsten (II) bromide is an inorganic compound, a salt of tungsten metal and hydrobromic acid with the formula WBr ₂ , blue-black crystals, reacts with water.

Content

1 Receiving
2 Physical properties
3 Chemical properties
4 See also
5 Literature

Getting

Hydrogen reduction of tungsten (V) bromide :

{\mathsf {2WBr_{5}+3H_{2}\ {\xrightarrow {400-450^{o}C}}\ 2WBr_{2}+6HBr}}

{\ displaystyle {\ mathsf {2WBr_ {5} + 3H_ {2} \ {\ xrightarrow {400-450 ^ {o} C}} \ 2WBr_ {2} + 6HBr}}}

Physical Properties

Tungsten (II) bromide forms blue-black crystals, reacts with water.

Tungsten bromide molecules are hexamer and have the structure [W ₆ Br ₈ ] Br ₄ .

Chemical Properties

It decomposes on heating in an inert atmosphere:

{\mathsf {WBr_{2}\ {\xrightarrow {400^{o}C}}\ W+Br_{2}}}

{\ displaystyle {\ mathsf {WBr_ {2} \ {\ xrightarrow {400 ^ {o} C}} \ W + Br_ {2}}}}

Reacts with water:

{\mathsf {WBr_{2}+2H_{2}O\ {\xrightarrow {}}\ WO_{2}\downarrow +2HBr+H_{2}\uparrow }}

{\ displaystyle {\ mathsf {WBr_ {2} + 2H_ {2} O \ {\ xrightarrow {}} \ WO_ {2} \ downarrow + 2HBr + H_ {2} \ uparrow}}}

Literature

Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - T. 1. - 623 p.
Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1972. - T. 2. - 871 p.

Tungsten bromide
General
Systematic name	Tungsten Bromide (II)
Traditional names	tungsten bromide; tungsten dibromide hexamer
Chem. formula	Wbr ₂
Physical properties
condition	blue-black crystals
Molar mass	343.67 g / mol
Thermal properties
T. melt.	decomp. 400 ° C
Classification
Reg. CAS number