Vanadyl sulfate

Vanadyl sulfate

Names
IUPAC name Oxovanadium(2+) sulfate
Other names Basic vanadium(IV) sulfate Vanadium(IV) oxide sulfate Vanadium(IV) oxysulfate
Identifiers
CAS Number	27774-13-6 Anhydrous (green in color) Y 12439-96-2 Pentahydrate (blue in color)
ECHA InfoCard	100.044.214
PubChem CID	34007 Anhydrous 167150 Pentahydrate
RTECS number	YW1925000
UNII	6DU9Y533FA Anhydrous (green in color) Y
CompTox Dashboard (EPA)	DTXSID4021428
InChI InChI=1S/H2O4S.O.V/c1-5(2,3)4;;/h(H2,1,2,3,4);;/q;;+2/p-2 N Key: UUUGYDOQQLOJQA-UHFFFAOYSA-L N
Properties
Chemical formula	H10O10SV
Molar mass	253.07 g·mol−1
Appearance	Blue solid
Melting point	105 °C (221 °F; 378 K) decomposes
Solubility in water	Soluble
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Irritant
Flash point	Non-flammble
Related compounds
Other anions	Vanadyl chloride Vanadyl nitrate
Other cations	Vanadium(III) sulfate
Related compounds	Vanadyl acetylacetonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Vanadyl(IV) sulfate describes a collection of inorganic compounds of vanadium with the formula, VOSO₄(H₂O)_x where 0 ≤ x ≤ 6. The pentahydrate is common. This hygroscopic blue solid is one of the most common sources of vanadium in the laboratory, reflecting its high stability. It features the vanadyl ion, VO²⁺, which has been called the "most stable diatomic ion".^[1]

Vanadyl sulfate is an intermediate in the extraction of vanadium from petroleum residues, one commercial source of vanadium.^[2]