Tin (II) sulfate

Tin sulphate
Tin sulphate
Are common
Systematic ; name	Tin sulphate
Traditional names	Sulphate tin
Chem. formula	SnSO 4
Physical properties
condition	colorless crystals
Molar mass	214.77 g / mol
Density	4.18 g / cm³
Thermal properties
T. melt.	different 360 ° C
T.
Chemical properties
Water solubility	18.8 19 ; 19 20 ; 18.1,100;
Classification
Reg. CAS number	7488-55-3
Pubchem
Reg. EINECS number
SMILES
Inchi
Reg. EC number	231-302-2
Chemspider

Tin (II) sulfate is an inorganic compound, a salt of a metal of tin and sulfuric acid with the formula SnSO ₄ , colorless crystals, soluble in water.

Content

Getting

Dissolution of tin in concentrated sulfuric acid:

{\mathsf {Sn+2H_{2}SO_{4}\ {\xrightarrow {T}}\ SnSO_{4}+SO_{2}\uparrow +2H_{2}O}}

{\ displaystyle {\ mathsf {Sn + 2H_ {2} SO_ {4} \ {\ xrightarrow {T}} \ SnSO_ {4} + SO_ {2} \ uparrow + 2H_ {2} O}}}

Dissolution of tin in acidified solution of copper sulphate :

{\mathsf {Sn+CuSO_{4}\ {\xrightarrow {T}}\ SnSO_{4}+Cu\downarrow }}

{\ displaystyle {\ mathsf {Sn + CuSO_ {4} \ {\ xrightarrow {T}} \ SnSO_ {4} + Cu \ downarrow}}}

Dissolution of tin hydroxide in sulfuric acid:

{\mathsf {Sn(OH)_{2}+H_{2}SO_{4}\ {\xrightarrow {}}\ SnSO_{4}+2H_{2}O}}

{\ displaystyle {\ mathsf {Sn (OH) _ {2} + H_ {2} SO_ {4} \ {\ xrightarrow {}} \ SnSO_ {4} + 2H_ {2} O}}}

Dissolution of tin chloride in sulfuric acid:

{\mathsf {SnCl_{2}+H_{2}SO_{4}\ {\xrightarrow {T}}\ SnSO_{4}+2HCl}}

{\ displaystyle {\ mathsf {SnCl_ {2} + H_ {2} SO_ {4} \ {\ xrightarrow {T}} \ SnSO_ {4} + 2HCl}}}

Physical Properties

Tin (II) sulfate forms paramagnetic colorless crystals, soluble in water.

Chemical Properties

When heated decomposes:

{\mathsf {SnSO_{4}\ {\xrightarrow {>360^{o}C}}\ SnO+SO_{3}\rightleftarrows SnO_{2}+SO_{2}}}

{\ displaystyle {\ mathsf {SnSO_ {4} \ {\ xrightarrow {> 360 ^ {o} C}} \ SnO + SO_ {3} \ rightleftarrows SnO_ {2} + SO_ {2}}}

Hydrolyzed with hot water:

{\mathsf {SnSO_{4}+H_{2}O\ \rightleftarrows \ Sn(OH)_{2}\downarrow +H_{2}SO_{4}}}

{\ displaystyle {\ mathsf {SnSO_ {4} + H_ {2} O \ \ rightleftarrows \ Sn (OH) _ {2} \ downarrow + H_ {2} SO_ {4}}}}

Decomposed by alkalis:

{\mathsf {SnSO_{4}+2NaOH\ {\xrightarrow {}}\ Sn(OH)_{2}\downarrow +Na_{2}SO_{4}}}

{\ displaystyle {\ mathsf {SnSO_ {4} + 2NaOH \ {\ xrightarrow {}} \ Sn (OH) _ {2} \ downarrow + Na_ {2} SO_ {4}}}}

{\mathsf {SnSO_{4}+3NaOH\ {\xrightarrow {}}\ Na[Sn(OH)_{3}]+Na_{2}SO_{4}}}

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

Slowly oxidized by air oxygen :

{\mathsf {4SnSO_{4}+O_{2}+2H_{2}O\ {\xrightarrow {T}}\ 2SnO_{2}\downarrow +Sn_{2}(OH)_{2}SO_{4}\downarrow +4H_{2}SO_{4}}}

{\ displaystyle {\ mathsf {4SnSO_ {4} + O_ {2} + 2H_ {2} O \ {\ xrightarrow {T}} \ 2SnO_ {2} \ downarrow + Sn_ {2} (OH) _ {2} SO_ {4} \ downarrow + 4H_ {2} SO_ {4}}}}

With alkali metal sulphates forms complex salts:

{\mathsf {SnSO_{4}+K_{2}SO_{4}\ {\xrightarrow {\ }}K_{2}[Sn(SO_{4})_{2}]}}

{\ displaystyle {\ mathsf {SnSO_ {4} + K_ {2} SO_ {4} \ {\ xrightarrow {\}} K_ {2} [Sn (SO_ {4}) _ {2}]}}}

When heated decomposes sulfuric acid:

{\mathsf {SnSO_{4}+2H_{2}SO_{4}\ {\xrightarrow {>130^{o}C}}\ Sn(SO_{4})_{2}+SO_{2}+2H_{2}O}}

{\ displaystyle {\ mathsf {SnSO_ {4} + 2H_ {2} SO_ {4} \ {\ xrightarrow {> 130 ^ {o} C}} \ Sn (SO_ {4}) _ {2} + SO_ {2 } + 2H_ {2} O}}}

Oxidized with a mixture of potassium permanganate and sulfuric acid :

{\mathsf {5SnSO_{4}+2KMnO_{4}+8H_{2}SO_{4}\ {\xrightarrow {}}\ 5Sn(SO_{4})_{2}+2MnSO_{4}+K_{2}SO_{4}+8H_{2}O}}

{\ displaystyle {\ mathsf {5SnSO_ {4} + 2KMnO_ {4} + 8H_ {2} SO_ {4} \ {\ xrightarrow {}} \ 5Sn (SO_ {4}) _ {2} + 2MnSO_ {4} + K_ {2} SO_ {4} + 8H_ {2} O}}}

Literature

Lidin R.A. and other Chemical properties of inorganic substances: Proc. manual for universities. - 3rd ed., Corr. - M .: Chemistry, 2000. - 480 p. - ISBN 5-7245-1163-0 .
Ripan R., Chetyanu I. Inorganic chemistry. Metal Chemistry. - M .: Mir, 1971. - T. 1. - 561 p.
Chemical Encyclopedia / Redkol .: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1992. - Vol. 3. - 639 p. - ISBN 5-82270-039-8 .
Chemist Handbook / Redkol .: Nikolsky B.P. et al. - 3rd ed., Rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Collection of tasks and exercises in chemistry / I. G. Khomchenko. - Kiev: Ary, 2008. - 190 p.