Chromium (III) Sulfide

Chromium sulfide
Chromium sulfide
Are common
Systematic ; name	Chromium (III) Sulfide
Traditional names	Chrome Sulfur
Chem. formula	Cr 2 S 3
Physical properties
condition	black brown crystals
Molar mass	200.18 g / mol
Density	3.60; 3.77 g / cm³
Classification
Reg. CAS number
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Chromium (III) sulfide is an inorganic compound, a salt of chromium metal and hydrogen sulfide with the formula Cr ₂ S ₃ , black-brown crystals, is hydrolyzed by water.

Getting

The effect of sulfur vapor on heated chromium:

{\mathsf {2Cr+3S\ {\xrightarrow {700^{o}C}}\ Cr_{2}S_{3}}}

{\ displaystyle {\ mathsf {2Cr + 3S \ {\ xrightarrow {700 ^ {o} C}} \ Cr_ {2} S_ {3}}}}

\mathsf{2Cr + 3S \ \xrightarrow{700^oC}\ Cr_2S_3 }

Fusion of chromium oxide (III) with sulfur:

{\mathsf {2Cr_{2}O_{3}+9S\ {\xrightarrow {T}}\ 2Cr_{2}S_{3}+3SO_{2}}}

{\ displaystyle {\ mathsf {2Cr_ {2} O_ {3} + 9S \ {\ xrightarrow {T}} \ 2Cr_ {2} S_ {3} + 3SO_ {2}}}}

\mathsf{2Cr_2O_3 + 9S \ \xrightarrow{T}\ 2Cr_2S_3 + 3SO_2 }

Passing hydrogen sulfide through heated chromium (III) oxide :

{\mathsf {Cr_{2}O_{3}+3H_{2}S\ {\xrightarrow {440^{o}C}}\ Cr_{2}S_{3}+3H_{2}O}}

{\ displaystyle {\ mathsf {Cr_ {2} O_ {3} + 3H_ {2} S \ {\ xrightarrow {440 ^ {o} C}} \ Cr_ {2} S_ {3} + 3H_ {2} O} }}

\mathsf{Cr_2O_3 + 3H_2S \ \xrightarrow{440^oC}\ Cr_2S_3 + 3H_2O }

Physical Properties

Chromium (III) sulfide forms black-brown crystals and is hydrolyzed by water.

Chemical Properties

Reacts with water:

{\mathsf {Cr_{2}S_{3}+3H_{2}O\ {\xrightarrow {}}\ Cr_{2}O_{3}+3H_{2}S}}

{\ displaystyle {\ mathsf {Cr_ {2} S_ {3} + 3H_ {2} O \ {\ xrightarrow {}} \ Cr_ {2} O_ {3} + 3H_ {2} S}}}

{\mathsf {Cr_{2}S_{3}+3H_{2}O\ {\xrightarrow {}}\ Cr_{2}O_{3}+3H_{2}S}}

Oxidized by heating in air:

{\mathsf {Cr_{2}S_{3}+5O_{2}\ {\xrightarrow {}}\ Cr_{2}O(SO_{4})_{2}+SO_{2}}}

{\ displaystyle {\ mathsf {Cr_ {2} S_ {3} + 5O_ {2} \ {\ xrightarrow {}} \ Cr_ {2} O (SO_ {4}) _ {2} + SO_ {2}}} }

{\mathsf {Cr_{2}S_{3}+5O_{2}\ {\xrightarrow {}}\ Cr_{2}O(SO_{4})_{2}+SO_{2}}}

Literature

Chemical Encyclopedia / Editorial: Zefirov N.S. et al. - M .: Big Russian Encyclopedia, 1998. - V. 5. - 783 p. - ISBN 5-85270-310-9 .
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, 1972. - T. 2. - 871 p.

Chromium sulfide
Are common
Systematic name	Chromium (III) Sulfide
Traditional names	Chrome Sulfur
Chem. formula	Cr ₂ S ₃
Physical properties
condition	black brown crystals
Molar mass	200.18 g / mol
Density	3.60; 3.77 g / cm³
Classification
Reg. CAS number
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Chromium (III) Sulfide

Getting

Physical Properties

Chemical Properties

Literature

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