Hydrogen hexabromoplatinate (IV)

Hexabromoplatinate
Hexabromoplatinate
Are common
Systematic ; name	Hydrogen hexabromoplatinate (IV)
Traditional names	hexabromoplate acid; hydrobromic acid
Chem. formula	H 2 [PtBr 6 ]
Physical properties
condition	crystals
Molar mass	676.52 g / mol
Classification
Reg. CAS number	20596-34-3
Reg. EINECS number	243-903-7

Hydrogen hexabromoplatinate (IV) is an inorganic compound, a complex platinum metal bromide with the formula H ₂ [PtBr ₆ ], crystals, it dissolves well in water, forms crystalline hydrates .

Content

Getting

Dissolution of platinum in hot concentrated hydrobromic acid with the passage of bromine through it ^[1] :

{\mathsf {Pt+2HBr+2Br_{2}\ {\xrightarrow {}}\ H_{2}[PtBr_{6}]}}

{\ displaystyle {\ mathsf {Pt + 2HBr + 2Br_ {2} \ {\ xrightarrow {}} \ H_ {2} [PtBr_ {6}]}}}

Physical Properties

HexaBromoplatinate (IV) hydrogen forms crystals.

Forms a crystalline hydrate of the composition H ₂ [PtBr ₆ ] • 9H ₂ O - red crystals that decompose at 100 ° C.

It is soluble in water, ethanol , diethyl ether , chloroform .

Chemical Properties

Reacts with diluted alkalis :

{\mathsf {H_{2}[PtBr_{6}]+2NaOH\ {\xrightarrow {}}\ Na_{2}[PtBr_{6}]+2H_{2}O}}

{\ displaystyle {\ mathsf {H_ {2} [PtBr_ {6}] + 2NaOH \ {\ xrightarrow {}} \ Na_ {2} [PtBr_ {6}] + 2H_ {2} O}}}

Decomposes on heating:

{\mathsf {H_{2}[PtBr_{6}]\ {\xrightarrow {180^{o}C}}\ PtBr_{4}+2HBr}}

{\ displaystyle {\ mathsf {H_ {2} [PtBr_ {6}] \ {\ xrightarrow {180 ^ {o} C}} \ PtBr_ {4} + 2HBr}}}

{\mathsf {H_{2}[PtBr_{6}]\ {\xrightarrow {180^{o}C}}\ PtBr_{2}+2HBr+Br_{2}}}

{\ displaystyle {\ mathsf {H_ {2} [PtBr_ {6}] \ {\ xrightarrow {180 ^ {o} C}} \ PtBr_ {2} + 2HBr + Br_ {2}}}}

Notes

↑ Duward F. Shriver. Inorganic Syntheses . - 1979. - T. 19. - ISBN 0-471-04542-X .

Literature

Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.

[1] Duward F. Shriver. Inorganic Syntheses . - 1979. - T. 19. - ISBN 0-471-04542-X .

Hexabromoplatinate
Are common
Systematic name	Hydrogen hexabromoplatinate (IV)
Traditional names	hexabromoplate acid; hydrobromic acid
Chem. formula	H ₂ [PtBr ₆ ]
Physical properties
condition	crystals
Molar mass	676.52 g / mol
Classification
Reg. CAS number	20596-34-3
Reg. EINECS number	243-903-7