Indium nitrate (III)

Indium nitrate
Indium nitrate
Are common
Systematic ; name	Indium nitrate
Traditional names	Indium Nitrate
Chem. formula	In (NO 3 ) 3
Physical properties
condition	white crystals
Molar mass	300.83 g / mol
Thermal properties
T. melt.	decomp. 100 ° C
Classification
Reg. CAS number
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Indium nitrate is an inorganic compound, a salt of indium metal and nitric acid with the formula In (NO ₃ ) ₃ , colorless, spreading crystals, forms crystalline hydrates .

Content

Getting

The action of nitric acid on indium , its oxide or hydroxide :

{\mathsf {In+4HNO_{3}\ {\xrightarrow {}}\ In(NO_{3})_{3}+NO\uparrow +2H_{2}O}}

{\ displaystyle {\ mathsf {In + 4HNO_ {3} \ {\ xrightarrow {}} \ In (NO_ {3}) _ {3} + NO \ uparrow + 2H_ {2} O}}}

{\mathsf {In_{2}O_{3}+6HNO_{3}\ {\xrightarrow {}}\ 2In(NO_{3})_{3}+3H_{2}O}}

{\ displaystyle {\ mathsf {In_ {2} O_ {3} + 6HNO_ {3} \ {\ xrightarrow {}} \ 2In (NO_ {3}) _ {3} + 3H_ {2} O}}}

{\mathsf {2In(OH)_{3}+6HNO_{3}\ {\xrightarrow {}}\ 2In(NO_{3})_{3}+3H_{2}O}}

{\ displaystyle {\ mathsf {2In (OH) _ {3} + 6HNO_ {3} \ {\ xrightarrow {}} \ 2In (NO_ {3}) _ {3} + 3H_ {2} O}}}

Physical Properties

Indium nitrate is a colorless, diffuse crystal that dissolves well in water and alcohol . It forms several crystalline hydrates: In (NO ₃ ) ₃ • 5H ₂ O, In (NO ₃ ) ₃ • 4.5H ₂ O, In (NO ₃ ) ₃ • 3H ₂ O and In (NO ₃ ) ₃ • H ₂ O.

Chemical Properties

Anhydrous salt can be obtained by drying the crystalline hydrate in vacuum :

{\mathsf {In(NO_{3})_{3}\cdot 5H_{2}O\ {\xrightarrow[{-H_{2}O}]{60^{o}C}}\ In(NO_{3})_{3}}}

{\ displaystyle {\ mathsf {In (NO_ {3}) _ {3} \ cdot 5H_ {2} O \ {\ xrightarrow [{- H_ {2} O}] {60 ^ {o} C}} \ In (NO_ {3}) _ {3}}}}

When heated, decomposes:

{\mathsf {2In(NO_{3})_{3}\ {\xrightarrow {100-160^{o}C}}\ 2In_{(}NO_{3})O+4NO_{2}\uparrow +O_{2}\uparrow }}

{\ displaystyle {\ mathsf {2In (NO_ {3}) _ {3} \ {\ xrightarrow {100-160 ^ {o} C}} \ 2In _ {(} NO_ {3}) O + 4NO_ {2} \ uparrow + O_ {2} \ uparrow}}}

{\mathsf {4In(NO_{3})_{3}\ {\xrightarrow {230-250^{o}C}}\ 2In_{2}O_{3}+12NO_{2}\uparrow +3O_{2}\uparrow }}

{\ displaystyle {\ mathsf {4In (NO_ {3}) _ {3} \ {\ xrightarrow {230-250 ^ {o} C}} \ 2In_ {2} O_ {3} + 12NO_ {2} \ uparrow + 3O_ {2} \ uparrow}}}

Reacts with diluted alkalis:

{\mathsf {In(NO_{3})_{3}+3NaOH\ {\xrightarrow {}}\ In(OH)_{3}\downarrow +3NaNO_{3}}}

{\ displaystyle {\ mathsf {In (NO_ {3}) _ {3} + 3NaOH \ {\ xrightarrow {}} \ In (OH) _ {3} \ downarrow + 3NaNO_ {3}}}}

It enters into metabolic reactions:

{\mathsf {In(NO_{3})_{3}+3KIO_{3}\ {\xrightarrow {}}\ In(IO_{3})_{3}\downarrow +3KNO_{3}}}

{\ displaystyle {\ mathsf {In (NO_ {3}) _ {3} + 3KIO_ {3} \ {\ xrightarrow {}} \ In (IO_ {3}) _ {3} \ downarrow + 3KNO_ {3}} }}

Literature

Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1990. - T. 2. - 671 p. - ISBN 5-82270-035-5 .
Lidin R.A. and other Chemical properties of inorganic substances: Textbook. manual for universities. - 3rd ed., Rev. - M .: Chemistry, 2000 .-- 480 p. - ISBN 5-7245-1163-0 .
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, 1971. - T. 1. - 561 p.