Vanadium(III) sulfate

Vanadium(III) sulfate is the inorganic compound with the formula V2(SO4)3. It is a pale yellow solid that is stable to air, in contrast to most vanadium(III) compounds. It slowly dissolves in water to give the green aquo complex [V(H2O)6]3+.

Vanadium(III) sulfate[1]
Names
IUPAC name
Vanadium(III) sulfate
Other names
Vanadium trisulfate
Divanadium trisulfate
Identifiers
ChemSpider
ECHA InfoCard 100.033.827
EC Number
  • 237-226-6
UNII
Properties
V2(SO4)3
Molar mass 390.074 g/mol
Appearance yellow powder
Melting point 400 °C (752 °F; 673 K) decomposes
slightly soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

The compound is prepared by treating V2O5 in sulfuric acid with elemental sulfur:[2]

V2O5 + S + 3 H2SO4 → V2(SO4)3 + SO2 + 3 H2O

This transformation is a rare example of a reduction by elemental sulfur.

When heated in vacuum at or slightly below 410 °C, it decomposes into vanadyl sulfate (VOSO4) and SO2. Vanadium(III) sulfate is stable in dry air but upon exposure to moist air for several weeks forms a green hydrate form.

Vanadium(III) sulfate is a reducing agent.

References
  1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–93, ISBN 0-8493-0594-2
  2. Robert T. Claunch, Mark M. Jones "Vanadium(III) Sulfate" Inorganic Syntheses, 1963, Volume 7, pages 92–94. doi:10.1002/9780470132388.ch28
Compounds containing the sulfate group (SO2−
4)
H2SO4 He
Li2SO4 BeSO4 B esters
ROSO3−
(RO)2SO2		 (NH4)2SO4
[N2H5]HSO4
(NH3OH)2SO4
NOHSO4		 HOSO4 F Ne
Na2SO4
NaHSO4		 MgSO4 Al2(SO4)3
Al2SO4(OAc)4		 Si P SO42−
HSO3HSO4
(HSO4)2		 Cl Ar
K2SO4
KHSO4		 CaSO4 Sc2(SO4)3 TiOSO4 VSO4
V2(SO4)3
VOSO4		 CrSO4
Cr2(SO4)3		 MnSO4 FeSO4
Fe2(SO4)3		 CoSO4
Co2(SO4)3		 NiSO4
Ni2(SO4)3		 CuSO4
Cu2SO4
[Cu(NH3)4(H2O)]SO4		 ZnSO4 Ga2(SO4)3 Ge As Se Br Kr
RbHSO4
Rb2SO4		 SrSO4 Y2(SO4)3 Zr(SO4)2 Nb MoSO4
Mo2(SO4)3
Mo(SO4)2
Mo(SO4)2
Mo(SO4)3		 Tc Ru(SO4)2 RhSO4
Rh2(SO4)3		 PdSO4 Ag2SO4
AgSO4		 CdSO4 In2(SO4)3 SnSO4
Sn(SO4)2		 Sb2(SO4)3 Te I Xe
Cs2SO4
CsHSO4		 BaSO4   Hf Ta W Re OsSO4
Os2(SO4)3
Os(SO4)2		 IrSO4
Ir2(SO4)3		 PtSO4
Pt(SO4)2		 AuSO4
Au2(SO4)3		 Hg2SO4
HgSO4		 Tl2SO4
Tl2(SO4)3		 PbSO4
Pb(SO4)2		 Bi2(SO4)3 PoSO4
Po(SO4)2		 At Rn
Fr Ra   Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
↓
La2(SO4)3 Ce2(SO4)3
Ce(SO4)2		 Pr2(SO4)3 Nd2(SO4)3 Pm2(SO4)3 Sm2(SO4)3 Eu2(SO4)3 Gd2(SO4)3 Tb2(SO4)3 Dy2(SO4)3 Ho2(SO4)3 Er2(SO4)3 Tm2(SO4)3 Yb2(SO4)3 Lu2(SO4)3
Ac2(SO4)3 Th(SO4)2 Pa U2(SO4)3
U(SO4)2
UO2SO4		 Np(SO4)2 Pu(SO4)2 Am2(SO4)3 Cm2(SO4)3 Bk Cf Es Fm Md No Lr
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