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Rhodium (IV) hydroxide

Rhodium (IV) hydroxide is an inorganic compound, rhodium hydroxide with the formula Rh (OH) ₄ , dark green powder, does not dissolve in water.

Rhodium hydroxide
Are common
Systematic name	Rhodium (IV) hydroxide
Traditional names	Rhodium hydroxide
Chem. formula	Rh (OH) ₄
Rac formula	RhO ₂ • 2H ₂ O
Physical properties
condition	dark green powder
Molar mass	170.93 g / mol
Density	8.2 g / cm³
Classification
Reg. CAS number	12137-27-8

Content

Getting

The alkali precipitation of a solution of sodium hexachloride (III) in the presence of oxidizing agents:

{\mathsf {2Na_{3}[RhCl_{6}]+12NaOH+NaClO+H_{2}O\ {\xrightarrow {}}\ 2Rh(OH)_{4}\downarrow +13NaCl}}

{\ displaystyle {\ mathsf {2Na_ {3} [RhCl_ {6}] + 12NaOH + NaClO + H_ {2} O \ {\ xrightarrow {}} \ 2Rh (OH) _ {4} \ downarrow + 13NaCl}}}

Physical Properties

Rhodium (IV) hydroxide forms a dark green powder.

Not soluble in water.

Chemical Properties

It is a strong oxidizing agent; chlorine is released when dissolved in hydrochloric acid :

{\mathsf {2Rh(OH)_{4}+8HCl\ {\xrightarrow {}}\ 2RhCl_{3}+Cl_{2}+4H_{2}O}}

{\ displaystyle {\ mathsf {2Rh (OH) _ {4} + 8HCl \ {\ xrightarrow {}} \ 2RhCl_ {3} + Cl_ {2} + 4H_ {2} O}}}

Literature

Chemist Handbook / Redkol .: Nikolsky B.P. et al. - 3rd ed., Rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Manual on inorganic synthesis: B 6 tons / Ed. Brower G. .. - M .: Mir, 1985. - V. 5. - 360 p.
CRC Handbook of Chemistry and Physics . - 89th edition. - Taylor and Francis Group, LLC, 2008-2009.
Ginzburg, SI and others. Analytical chemistry of platinum metals. - M .: Science, 1972. - 616 p.

Source - https://ru.wikipedia.org/w/index.php?title=Hydroxide_rodiya ( IVIV&oldid = 80362478

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