Barium Dithionate

Barium Dithionate
Barium Dithionate
Are common
Systematic ; name	Barium Dithionate
Traditional names	Barium Dithionic Acid
Chem. formula	BaS 2 O 6
Physical properties
condition	transparent (white) crystals
Molar mass	297.45 g / mol
Density	hydr. 4,536 g / cm³
Chemical properties
Water solubility	8.5 0 ; 18.7 20 ; 24.8 30 ; 90.9 100 g / 100 ml
Optical properties
Refractive index	1,5951
Classification
Reg. CAS number
Pubchem
Reg. EINECS number
SMILES
Inchi
Chemspider

Barium dithionate is an inorganic compound, a salt of an alkaline earth metal of barium and dithionic acid with the formula BaS ₂ O ₆ , colorless (white) crystals, soluble in water, forms a crystalline hydrate .

Content

Getting

Exchange reaction with manganese dithionate :

{\mathsf {Ba(OH)_{2}+MnS_{2}O_{6}\ {\xrightarrow {}}\ BaS_{2}O_{6}+Mn(OH)_{2}\downarrow }}

{\ displaystyle {\ mathsf {Ba (OH) _ {2} + MnS_ {2} O_ {6} \ {\ xrightarrow {}} \ BaS_ {2} O_ {6} + Mn (OH) _ {2} \ downarrow}}}

Physical Properties

Barium dithionate forms transparent (white) crystals.

Well soluble in water, hydrolysis by anion .

Forms a crystalline hydrate composition BaS ₂ O ₆ • 2H ₂ O.

Chemical Properties

Decomposes on heating:

{\mathsf {BaS_{2}O_{6}\ {\xrightarrow {140^{o}C}}\ BaSO_{4}+SO_{2}\uparrow }}

{\ displaystyle {\ mathsf {BaS_ {2} O_ {6} \ {\ xrightarrow {140 ^ {o} C}} \ BaSO_ {4} + SO_ {2} \ uparrow}}}

Anhydrous salt is obtained by drying crystalline hydrate:

{\mathsf {BaS_{2}O_{6}\cdot 2H_{2}O\ {\xrightarrow {120^{o}C}}\ BaS_{2}O_{6}+H_{2}O}}

{\ displaystyle {\ mathsf {BaS_ {2} O_ {6} \ cdot 2H_ {2} O \ {\ xrightarrow {120 ^ {o} C}} \ BaS_ {2} O_ {6} + H_ {2} O }}}

With dilute sulfuric acid enters into metabolic reactions:

{\mathsf {BaS_{2}O_{6}+H_{2}SO_{4}\ {\xrightarrow {}}\ H_{2}S_{2}O_{6}+BaSO_{4}\downarrow }}

{\ displaystyle {\ mathsf {BaS_ {2} O_ {6} + H_ {2} SO_ {4} \ {\ xrightarrow {}} \ H_ {2} S_ {2} O_ {6} + BaSO_ {4} \ downarrow}}}

When boiling with acids decomposes:

{\mathsf {BaS_{2}O_{6}+H_{2}SO_{4}\ {\xrightarrow {}}\ BaSO_{4}\downarrow +SO_{2}\uparrow }}

{\ displaystyle {\ mathsf {BaS_ {2} O_ {6} + H_ {2} SO_ {4} \ {\ xrightarrow {}} \ BaSO_ {4} \ downarrow + SO_ {2} \ uparrow}}}

Literature

Chemist Handbook / Redkol .: Nikolsky B.P. et al. - 3rd ed., Rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Lidin R.A. and other Chemical properties of inorganic substances: Textbook. manual for universities. - 3rd ed., Corr. - M .: Chemistry, 2000 .-- 480 p. - ISBN 5-7245-1163-0 .