Bismuth (II) sulfide

Bismuth sulfide
Bismuth sulfide
General
Systematic ; name	Bismuth sulfide
Traditional names	Sulfur Bismuth
Chem. formula	BiS
Physical properties
condition	gray crystals
Molar mass	241.04 g / mol
Density	7.7 g / cm³
Thermal properties
T. melt.	685 ° C
Classification
PubChem
Smiles
Inchi
ChemSpider

Bismuth (II) sulfide is a binary inorganic compound, a salt of bismuth metal and hydrogen sulfide with the formula BiS, gray crystals, insoluble in water.

Content

1 Receiving
2 Physical properties
3 Chemical properties
4 Literature

Getting

Fusion of excess bismuth and sulfur in an inert atmosphere ::

{\mathsf {Bi+S\ {\xrightarrow {510^{o}C}}\ BiS}}

{\ displaystyle {\ mathsf {Bi + S \ {\ xrightarrow {510 ^ {o} C}} \ BiS}}}

Decomposition of bismuth (III) sulfide upon heating:

{\mathsf {Bi_{2}S_{3}\ {\xrightarrow {>685^{o}C}}\ 2BiS+S}}

{\ displaystyle {\ mathsf {Bi_ {2} S_ {3} \ {\ xrightarrow {> 685 ^ {o} C}} \ 2BiS + S}}}

Physical Properties

Bismuth (II) sulfide forms gray crystals, orthorhombic prisms.

Not soluble in water.

Chemical Properties

Oxidized by atmospheric oxygen when heated:

{\mathsf {4BiS+7O_{2}\ {\xrightarrow {T}}\ 2Bi_{2}O_{3}+4SO_{2}\uparrow }}

{\ displaystyle {\ mathsf {4BiS + 7O_ {2} \ {\ xrightarrow {T}} \ 2Bi_ {2} O_ {3} + 4SO_ {2} \ uparrow}}}

It is restored by hydrogen when heated:

{\mathsf {BiS+H_{2}\ {\xrightarrow {685^{o}C}}\ Bi+H_{2}S}}

{\ displaystyle {\ mathsf {BiS + H_ {2} \ {\ xrightarrow {685 ^ {o} C}} \ Bi + H_ {2} S}}}

Literature

Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - T. 1. - 623 p.
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, 1971. - T. 1. - 561 p.