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Vanadium Sulfide

Vanadium sulfide - a binary inorganic compound, a metal salt of vanadium and hydrogen sulfide acid with the formula VS, black-brown crystals.

Vanadium Sulfide
Are common
Systematic
name
Vanadium Sulfide
Traditional namesvanadium sulphide
Chem. formulaVS
Rat formulaVS
Physical properties
conditionblack brown crystals
Molar mass83.01 g / mol
Density4.20; 4.51 g / cm³

Getting

  • Decomposition of vanadium (III) sulfide upon prolonged heating:
V2S3→850-950oC,τ2VS+S{\ displaystyle {\ mathsf {V_ {2} S_ {3} \ {\ xrightarrow {850-950 ^ {o} C, \ tau}} \ 2VS + S}}}  
  • Reduction of vanadium (III) sulfide with hydrogen :
V2S3+H2→850-1100oC,τ2VS+H2S{\ displaystyle {\ mathsf {V_ {2} S_ {3} + H_ {2} \ {\ xrightarrow {850-1100 ^ {o} C, \ tau}} \ 2VS + H_ {2} S}}}  
  • Fusion of vanadium (V) oxide with sulfur in an inert atmosphere:
2V2Ofive+9S→400oCfourVS+fiveSO2{\ displaystyle {\ mathsf {2V_ {2} O_ {5} + 9S \ {\ xrightarrow {400 ^ {o} C}} \ 4VS + 5SO_ {2}}}}  

Physical Properties

Vanadium sulfide forms black-brown crystals of hexagonal syngony , space group P 6 / mmc , cell parameters a = 0.334 nm, c = 0.5785 nm, Z = 2.

Chemical Properties

  • Oxidized by heating in air:
fourVS+9O2→T2V2Ofive+fourSO2{\ displaystyle {\ mathsf {4VS + 9O_ {2} \ {\ xrightarrow {T}} \ 2V_ {2} O_ {5} + 4SO_ {2}}}}  

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.
  • Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1972. - T. 2. - 871 p.


Source - https://ru.wikipedia.org/w/index.php?title= Vanadium sulfide&oldid = 100167966


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