Vanadium tetrasulfide is an inorganic compound of vanadium and sulfur with the formula VS 4 , black crystals.
| Vanadium Tetrasulfide | |
|---|---|
| Are common | |
| Systematic name | Vanadium Tetrasulfide |
| Traditional names | Vanadium Sulfur |
| Chem. formula | VS 4 |
| Physical properties | |
| condition | black crystals |
| Molar mass | 179.20 g / mol |
| Density | 2.8 g / cm³ |
| Thermal properties | |
| T. decomp. | 500 ° C |
Content
History
Vanadium tetrasulfide was first discovered by Hewitt and Bravo in 1906 and first published in 1907 by Hillbrand.
Getting
- In nature, the mineral patronite - VS 4 with impurities is found.
- The reaction of pure substances with a slight excess of sulfur:
Physical Properties
Vanadium tetrasulfide forms black diamagnetic crystals.
Space group C12 / s1. Monoclinic syngony, prismatic type of symmetry.
Unit cell: a = 6.78, b = 10.42, c = 12.11, angles α = 90.00, β = 110.8250, γ = 90.00.
It has a linear chain structure.
VS4 Chain Structure
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. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
- Greenwood N., Earnshaw A. Chemistry of elements. - Binom. Laboratory of knowledge, 2008. - T. 2. - 666 p. - ISBN 978-5-94774-372-2 .