Ditorium pentasulfide is a binary inorganic compound of thorium and sulfur with the formula Th 2 S 5 , red crystals.
| Ditorium Pentasulfide | |
|---|---|
| Are common | |
| Systematic name | Ditorium Pentasulfide |
| Traditional names | Thorium sulphide; thorium polyl sulfide |
| Chem. formula | Th 2 s 5 |
| Physical properties | |
| condition | red crystals |
| Molar mass | 624.40 g / mol |
| Density | 6.92 g / cm³ |
| Thermal properties | |
| T. decomp. | 600 [1] |
| Enthalpy of Education | -152 kJ / mol |
Getting
- Heating stoichiometric quantities of pure substances in vacuum [2] :
Physical Properties
Ditorium pentasulfide forms red crystals of rhombic syngony , space group P cnb , cell parameters a = 0.7623 nm , b = 0.7677 nm , c = 1.0141 nm , Z = 4 [3] [4] [5] . Due to the proximity of the values of the parameters a and b, many studies report that the structure is tetragonal. There is an SS bond in the compound, that is, it belongs to polysulfides .
The compound decomposes at a temperature of 600 ° C.
Notes
- ↑ Horst Wedemeyer. Gmelin Handbook of Inorganic and Organometallic Chemistry. Compounds of Thorium and Sulfur. - Springer Berlin Heidelberg, 1985 .-- T. Th / AE / C / 5. - S. 1-87. - DOI : 10.1007 / 978-3-662-06342-2_1 .
- ↑ David Brown, Horst Wedemeyer. Th Thorium: Compounds with S, Se, Te and B. - S. 43.
- ↑ State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Engineering, 2000. - T. 3 Book 2. - 448 p. - ISBN 5-217-02932-3 .
- ↑ B. Predel. S-Th (Sulfur-Thorium) // Landolt-Börnstein - Group IV Physical Chemistry. - 1998 .-- T. 5J . - S. 1 . - DOI : 10.1007 / 10551312_2664 .
- ↑ H. Noël, M. Potel. Structure du polysulfure de thorium Th 2 S 5 // Acta Cryst .. - 1982. - T. B38 . - S. 2444-2445 . - DOI : 10.1107 / S0567740882008978 .