Gallium sulfate

Gallium sulfate
Gallium sulfate
Are common
Systematic ; name	Gallium sulfate
Traditional names	Gallium sulfate
Chem. formula	Ga 2 (SO 4 ) 3
Physical properties
condition	white crystals
Molar mass	427.63 g / mol
Chemical properties
Solubility in water	92 g / 100 ml
Classification
PubChem
Smiles
Inchi
ChemSpider

Gallium sulfate is an inorganic compound, a metal salt of gallium and sulfuric acid with the formula Ga ₂ (SO ₄ ) ₃ , colorless crystals, forms a crystalline hydrate .

Content

Getting

The action of sulfuric acid on gallium , its oxide or hydroxide :

{\mathsf {2Ga+3H_{2}SO_{4}\ {\xrightarrow {}}\ Ga_{2}(SO_{4})_{3}+3H_{2}\uparrow }}

{\ displaystyle {\ mathsf {2Ga + 3H_ {2} SO_ {4} \ {\ xrightarrow {}} \ Ga_ {2} (SO_ {4}) _ {3} + 3H_ {2} \ uparrow}}}

{\mathsf {Ga_{2}O_{3}+3H_{2}SO_{4}\ {\xrightarrow {}}\ 2Ga_{2}(SO_{4})_{3}+3H_{2}O}}

{\ displaystyle {\ mathsf {Ga_ {2} O_ {3} + 3H_ {2} SO_ {4} \ {\ xrightarrow {}} \ 2Ga_ {2} (SO_ {4}) _ {3} + 3H_ {2 } O}}}

{\mathsf {2Ga(OH)_{3}+3H_{2}SO_{4}\ {\xrightarrow {}}\ Ga_{2}(SO_{4})_{3}+6H_{2}O}}

{\ displaystyle {\ mathsf {2Ga (OH) _ {3} + 3H_ {2} SO_ {4} \ {\ xrightarrow {}} \ Ga_ {2} (SO_ {4}) _ {3} + 6H_ {2 } O}}}

Physical Properties

Gallium sulfate is a colorless, diffuse crystal, it dissolves well in water, does not dissolve in alcohol and ether . Forms a crystalline hydrate: Ga ₂ (SO ₄ ) ₃ • 18H ₂ O.

Chemical Properties

When heated, decomposes:

{\mathsf {2Ga_{2}(SO_{4})_{3}\ {\xrightarrow {520-700^{o}C}}\ 2Ga_{2}O_{3}+6SO_{2}\uparrow +3O_{2}\uparrow }}

{\ displaystyle {\ mathsf {2Ga_ {2} (SO_ {4}) _ {3} \ {\ xrightarrow {520-700 ^ {o} C}} \ 2Ga_ {2} O_ {3} + 6SO_ {2} \ uparrow + 3O_ {2} \ uparrow}}}

Reacts with diluted alkalis:

{\mathsf {Ga_{2}(SO_{4})_{3}+6NaOH\ {\xrightarrow {}}\ 2Ga(OH)_{3}\downarrow +3Na_{2}SO_{4}}}

{\ displaystyle {\ mathsf {Ga_ {2} (SO_ {4}) _ {3} + 6NaOH \ {\ xrightarrow {}} \ 2Ga (OH) _ {3} \ downarrow + 3Na_ {2} SO_ {4} }}}

and concentrated:

{\mathsf {Ga_{2}(SO_{4})_{3}+8NaOH\ {\xrightarrow {}}\ 2Na[Ga(OH)_{4}]+3Na_{2}SO_{4}}}

{\ displaystyle {\ mathsf {Ga_ {2} (SO_ {4}) _ {3} + 8NaOH \ {\ xrightarrow {}} \ 2Na [Ga (OH) _ {4}] + 3Na_ {2} SO_ {4 }}}}

It enters into metabolic reactions:

{\mathsf {Ga_{2}(SO_{4})_{3}+6HF\ {\xrightarrow {}}\ 2GaF_{3}\downarrow +3Na_{2}SO_{4}}}

{\ displaystyle {\ mathsf {Ga_ {2} (SO_ {4}) _ {3} + 6HF \ {\ xrightarrow {}} \ 2GaF_ {3} \ downarrow + 3Na_ {2} SO_ {4}}}}

{\mathsf {Ga_{2}(SO_{4})_{3}+2K_{3}PO_{4}\ {\xrightarrow {}}\ 2GaPO_{4}\downarrow +3K_{2}SO_{4}}}

{\ displaystyle {\ mathsf {Ga_ {2} (SO_ {4}) _ {3} + 2K_ {3} PO_ {4} \ {\ xrightarrow {}} \ 2GaPO_ {4} \ downarrow + 3K_ {2} SO_ {four}}}}

{\mathsf {2Ga_{2}(SO_{4})_{3}+6Na_{2}S+3H_{2}O\ {\xrightarrow {}}\ 2Ga(OH)_{3}\downarrow +3H_{2}S\uparrow +6Na_{2}SO_{4}}}

{\ displaystyle {\ mathsf {2Ga_ {2} (SO_ {4}) _ {3} + 6Na_ {2} S + 3H_ {2} O \ {\ xrightarrow {}} \ 2Ga (OH) _ {3} \ downarrow + 3H_ {2} S \ uparrow + 6Na_ {2} SO_ {4}}}}

With sulphates of some alkali metals forms alum :

{\mathsf {2Ga_{2}(SO_{4})_{3}+M_{2}SO_{4}+24H_{2}O\ {\xrightarrow {}}\ 2MGa(SO_{4})_{2}\cdot 12H_{2}O\downarrow ,\ \ \ (M=K^{+},Rb^{+},Cs^{+},NH_{4}^{+})}}

{\ displaystyle {\ mathsf {2Ga_ {2} (SO_ {4}) _ {3} + M_ {2} SO_ {4} + 24H_ {2} O \ {\ xrightarrow {}} \ 2MGa (SO_ {4} ) _ {2} \ cdot 12H_ {2} O \ downarrow, \ \ \ (M = K ^ {+}, Rb ^ {+}, Cs ^ {+}, NH_ {4} ^ {+})}} }

Literature

Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - T. 1. - 623 p.
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.