Ammonium tetrathiovanadate

Ammonium tetrathiovanadate

Names
Other names Ammonium tetrathiovanadate(V)
Identifiers
CAS Number	14693-56-2
3D model (JSmol)	Interactive image
InChI InChI=1S/3H3N.4S.V/h3*1H3;;;;;/q;;;;3*-1;/p+3 Key: SJFCDLDHOZFGTN-UHFFFAOYSA-Q
SMILES [NH4+].[NH4+].[NH4+].[S-][V](=S)([S-])[S-]
Properties
Chemical formula	H12N3S4V
Molar mass	233.30 g·mol^−1
Appearance	violet crystals
Density	g/cm^3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Ammonium tetrathiovanadate is a chemical compound with the chemical formula (NH₄)₃VS₄.^[1][2]

Physical properties

Ammonium tetrathiovanadate forms violet crystals of orthorhombic symmetry.^[3]

Chemical properties

Like other ammonium salts, ammonium tetrathiovanadate decomposes when heated:^[4]

(NH₄)₃VS₄ → 6NH₃↑ + 3H₂S↑ + V₂S₅

V₂S₅ → V₂S₃ + 2S

References

1. "CAS 14693-56-2 Ammonium tetrathiovanadate(v),99 - Alfa Chemistry". alfa-chemistry.com. Retrieved 24 December 2024.
2. Scott, C. E.; Embaid, B. P.; Gonzalez-Jimenez, F.; Hubaut, R.; Grimblot, J. (1 March 1997). "Behavior of Iron–Vanadium Sulfide Catalysts for Hydrotreating Reactions". Journal of Catalysis. 166 (2): 333–339. doi:10.1006/jcat.1997.1526. ISSN 0021-9517. Retrieved 24 December 2024.
3. Donnay, Joseph Désiré Hubert (1973). Crystal Data: Inorganic compounds. National Bureau of Standards. p. 200. Retrieved 24 December 2024.
4. Prasad, T. P.; Müller, A. (December 1976). "Thermal decompositions of (NH4)2WSe4 and (NH4)3VS4 under normal and reduced nitrogen pressures". Journal of Thermal Analysis and Calorimetry. 10 (3): 369–373. doi:10.1007/BF01909888. Retrieved 24 December 2024.