Ytterbium (III) sulfate

Ytterbium sulfate
Ytterbium sulfate
Are common
Systematic ; name	Ytterbium sulfate
Traditional names	Ytterbium Sulphate
Chem. formula	Yb 2 (SO 4 ) 3
Physical properties
condition	colorless crystals
Molar mass	634.27 g / mol
Density	3.793 g / cm³
Chemical properties
Water solubility	38.4 20 ; 6.92 80 g / 100 ml
Classification
Reg. CAS number
Pubchem
Reg. EINECS number
Inchi
Chemspider

Ytterbium (III) sulfate is an inorganic compound, a salt of ytterbium metal and sulfuric acid with the formula Yb ₂ (SO ₄ ) ₃ , colorless crystals, soluble in water, forms a crystalline hydrate .

Content

Getting

Dissolution of the oxide in sulfuric acid :

{\mathsf {Yb_{2}O_{3}+3H_{2}SO_{4}\ {\xrightarrow {100^{o}C}}\ Yb_{2}(SO_{4})_{3}+3H_{2}O}}

{\ displaystyle {\ mathsf {Yb_ {2} O_ {3} + 3H_ {2} SO_ {4} \ {\ xrightarrow {100 ^ {o} C}} \ Yb_ {2} (SO_ {4}) _ { 3} + 3H_ {2} O}}}

Physical Properties

Ytterbium sulphate (III) forms colorless crystals.

It dissolves in water with weak cation hydrolysis .

Forms crystalline hydrate of Yb ₂ (SO ₄ ) ₃ • 8H ₂ O composition.

Chemical Properties

Anhydrous salt is obtained by drying the crystalline hydrate:

{\mathsf {Yb_{2}(SO_{4})_{3}\cdot 8H_{2}O\ {\xrightarrow {600^{o}C}}\ Yb_{2}(SO_{4})_{3}+8H_{2}O}}

{\ displaystyle {\ mathsf {Yb_ {2} (SO_ {4}) _ {3} \ cdot 8H_ {2} O \ {\ xrightarrow {600 ^ {o} C}} \ Yb_ {2} (SO_ {4 }) _ {3} + 8H_ {2} O}}}

Decomposes when heated:

{\mathsf {2Yb_{2}(SO_{4})_{3}\ {\xrightarrow {900^{o}C}}\ Yb_{2}O_{3}+6SO_{2}+3O_{2}}}

{\ displaystyle {\ mathsf {2Yb_ {2} (SO_ {4}) _ {3} \ {\ xrightarrow {900 ^ {o} C}} \ Yb_ {2} O_ {3} + 6SO_ {2} + 3O_ {2}}}}

Reacts with alkalis :

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

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

It is reduced by atomic hydrogen to ytterbium sulfate (II) :

{\mathsf {Yb_{2}(SO_{4})_{3}+2H_{(Zn,HCl)}^{0}\ {\xrightarrow {}}\ 2YbSO_{4}\downarrow +H_{2}SO_{4}}}

{\ displaystyle {\ mathsf {Yb_ {2} (SO_ {4}) _ {3} + 2H _ {(Zn, HCl)} ^ {0} \ {\ xrightarrow {}} \ 2YbSO_ {4} \ downarrow + H_ {2} SO_ {4}}}}

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: Proc. manual for universities. - 3rd ed., Corr. - M .: Chemistry, 2000. - 480 p. - ISBN 5-7245-1163-0 .