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Dihydrogen trisulfide

Diitrium trisulfide is a binary inorganic compound of yttrium and sulfur metal with the formula Y 2 S 3 , yellow crystals, insoluble in water.

Dihydrogen trisulfide
Are common
Systematic
name
Dihydrogen trisulfide
Traditional namesYttrium sesquisulfide, yttrium sulfide
Chem. formulaY 2 S 3
Physical properties
conditionyellow crystals
Molar mass274.01 g / mol
Density3,820; 3.87 g / cm³
Thermal properties
T. melt.1925 ° C
Classification
Reg. CAS number12039-19-9
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Content

Getting

  • The effect of sulfur vapor on metallic yttrium:
2Y+3S→600-700oCY2S3{\ displaystyle {\ mathsf {2Y + 3S \ {\ xrightarrow {600-700 ^ {o} C}} \ Y_ {2} S_ {3}}}}  
  • The effect of hydrogen sulfide or carbon disulfide on yttrium oxide :
Y2O3+3H2S→1050-1200oCY2S3+3H2O{\ displaystyle {\ mathsf {Y_ {2} O_ {3} + 3H_ {2} S \ {\ xrightarrow {1050-1200 ^ {o} C}} \ Y_ {2} S_ {3} + 3H_ {2} O}}}  
2Y2O3+3CS2→T2Y2S3+3CO2{\ displaystyle {\ mathsf {2Y_ {2} O_ {3} + 3CS_ {2} \ {\ xrightarrow {T}} \ 2Y_ {2} S_ {3} + 3CO_ {2}}}}  
  • Recovery of yttrium sulfate with carbon or hydrogen sulfide :
Y2(SOfour)3+12C→TY2S3+12CO{\ displaystyle {\ mathsf {Y_ {2} (SO_ {4}) _ {3} + 12C \ {\ xrightarrow {T}} \ Y_ {2} S_ {3} + 12CO}}}  
Y2(SOfour)3+3H2S→1450Y2S3+3H2SOfour{\ displaystyle {\ mathsf {Y_ {2} (SO_ {4}) _ {3} + 3H_ {2} S \ {\ xrightarrow {1450}} \ Y_ {2} S_ {3} + 3H_ {2} SO_ {four}}}}  

Physical Properties

Diitrium trisulfide forms yellow crystals of monoclinic syngony , cell parameters a = 1.017 nm, b = 0.402 nm, c = 1.777 nm, β = 81.17 °, Z = 6.

Not soluble in cold water, reacts with hot.

Chemical Properties

  • Reacts with hot water:
Y2S3+6H2O→100oC2Y(OH)3+3H2S↑{\ displaystyle {\ mathsf {Y_ {2} S_ {3} + 6H_ {2} O \ {\ xrightarrow {100 ^ {o} C}} \ 2Y (OH) _ {3} + 3H_ {2} S \ uparrow}}}  
  • Reacts with acids :
Y2S3+3HCl→2YCl3+3H2S↑{\ displaystyle {\ mathsf {Y_ {2} S_ {3} + 3HCl \ {\ xrightarrow {}} \ 2YCl_ {3} + 3H_ {2} S \ uparrow}}}  
  • Oxidized by atmospheric oxygen when heated:
2Y2S3+9O2→>650oC2Y2O3+6SO2↑{\ displaystyle {\ mathsf {2Y_ {2} S_ {3} + 9O_ {2} \ {\ xrightarrow {> 650 ^ {o} C}} \ 2Y_ {2} O_ {3} + 6SO_ {2} \ uparrow }}}  

Literature

  • 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, 1972. - T. 2. - 871 p.



Source - https://ru.wikipedia.org/w/index.php?title=Triisulfide_diitria&oldid=80371969


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