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 names | Yttrium sesquisulfide, yttrium sulfide |
| Chem. formula | Y 2 S 3 |
| Physical properties | |
| condition | yellow crystals |
| Molar mass | 274.01 g / mol |
| Density | 3,820; 3.87 g / cm³ |
| Thermal properties | |
| T. melt. | 1925 ° C |
| Classification | |
| Reg. CAS number | 12039-19-9 |
| PubChem | |
| Reg. EINECS number | |
| Smiles | |
| Inchi | |
| ChemSpider | |
Content
Getting
- The effect of sulfur vapor on metallic yttrium:
- The effect of hydrogen sulfide or carbon disulfide on yttrium oxide :
- Recovery of yttrium sulfate with carbon or hydrogen sulfide :
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:
- Reacts with acids :
- Oxidized by atmospheric oxygen when heated:
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.