Germany (II) sulfide

Germany sulphide
Germany sulphide
General
Systematic ; name	Germany sulphide
Traditional names	Sulfur germanium
Chem. formula	GeS
Physical properties
condition	crystals, gray-black with a red tint
Molar mass	104.68 g / mol
Density	4.01 g / cm³
Thermal properties
T. melt.	655 ° C
Enthalpy of Education	-73.40 kJ / mol
Classification
Reg. CAS number
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Germanium (II) sulfide - a binary inorganic compound of a metal of germanium and sulfur with the formula GeS, gray-black crystals with a red tint, insoluble in water.

Content

1 Receiving
2 Physical properties
3 Chemical properties
4 Literature

Getting

The fusion of germanium and sulfur:

{\mathsf {Ge+S\ {\xrightarrow {1000^{o}C}}\ GeS}}

{\ displaystyle {\ mathsf {Ge + S \ {\ xrightarrow {1000 ^ {o} C}} \ GeS}}}

Passing hydrogen sulfide over metallic germanium:

{\mathsf {Ge+H_{2}S\ {\xrightarrow {600-800^{o}C}}\ GeS+H_{2}}}

{\ displaystyle {\ mathsf {Ge + H_ {2} S \ {\ xrightarrow {600-800 ^ {o} C}} \ GeS + H_ {2}}}}

Passing hydrogen sulfide through germanium chloride :

{\mathsf {GeCl_{2}+H_{2}S\ {\xrightarrow {}}\ GeS+2HCl}}

{\ displaystyle {\ mathsf {GeCl_ {2} + H_ {2} S \ {\ xrightarrow {}} \ GeS + 2HCl}}}

Reduction of germanium disulfide with hydrogen :

{\mathsf {GeS_{2}+H_{2}\ {\xrightarrow {350-400^{o}C}}\ GeS+H_{2}S}}

{\ displaystyle {\ mathsf {GeS_ {2} + H_ {2} \ {\ xrightarrow {350-400 ^ {o} C}} \ GeS + H_ {2} S}}}

By heating germanium disulfide with metallic germanium in an inert atmosphere:

{\mathsf {GeS_{2}+Ge\ {\xrightarrow {T}}\ 2GeS}}

{\ displaystyle {\ mathsf {GeS_ {2} + Ge \ {\ xrightarrow {T}} \ 2GeS}}}

Physical Properties

Germanium (II) sulfide forms crystals of rhombic syngony , gray-black with a red tint, space group P nma , cell parameters a = 1.042 nm, b = 0.364 nm, c = 0.429 nm, Z = 4. IV-VI semiconductor .

Insoluble in water, PR = 3.0 × 10 ^-35 .

Chemical Properties

Reacts with acids:

{\mathsf {GeS+2HCl\ {\xrightarrow {}}\ GeCl_{2}+H_{2}S\uparrow }}

{\ displaystyle {\ mathsf {GeS + 2HCl \ {\ xrightarrow {}} \ GeCl_ {2} + H_ {2} S \ uparrow}}}

Reacts with alkalis:

{\mathsf {GeS+2NaOH\ {\xrightarrow {}}\ Ge(OH)_{2}\downarrow +2Na_{2}S}}

{\ displaystyle {\ mathsf {GeS + 2NaOH \ {\ xrightarrow {}} \ Ge (OH) _ {2} \ downarrow + 2Na_ {2} S}}}

It is oxidized by oxygen and concentrated nitric acid :

{\mathsf {2GeS+2O_{2}\ {\xrightarrow {}}\ GeO_{2}+SO_{2}}}

{\ displaystyle {\ mathsf {2GeS + 2O_ {2} \ {\ xrightarrow {}} \ GeO_ {2} + SO_ {2}}}}

{\mathsf {GeS+10HNO_{3}\ {\xrightarrow {}}\ GeO_{2}\downarrow +10NO_{2}\uparrow +H_{2}SO_{4}+4H_{2}O}}

{\ displaystyle {\ mathsf {GeS + 10HNO_ {3} \ {\ xrightarrow {}} \ GeO_ {2} \ downarrow + 10NO_ {2} \ uparrow + H_ {2} SO_ {4} + 4H_ {2} O} }}

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. - 2nd ed., rev. - M.-L.: Chemistry, 1966. - T. 1. - 1072 p.
Chemistry Handbook / Editorial: 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., Rev. - M .: Chemistry, 2000 .-- 480 p. - ISBN 5-7245-1163-0 .
Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1971. - T. 1. - 561 p.

Germanium compound classes

► Germany compounds