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Reduction of this compound with alcohols gives the vanadium(IV) phosphates. These compounds are catalysts for the oxidation of butane to maleic anhydride . A key step in the activation of these catalysts is the conversion of VO(HPO 4 )•0.5H 2 O to the pyrophosphate (VO) 2 (P 2 O 7 ).
From left: [V(H 2 O) 6] 2+ (lilac), [V(H 2 O) 6] 3+ (green), [VO(H 2 O) 5] 2+ (blue) and [VO(H 2 O) 5] 3+ (yellow).. Vanadium compounds are compounds formed by the element vanadium (V). The chemistry of vanadium is noteworthy for the accessibility of the four adjacent oxidation states 2–5, whereas the chemistry of the other group 5 elements, niobium and tantalum, are somewhat more limited to ...
EuO 2 V: monoeuropium monovandium dioxide: 88762-30-5 EuO 3 Ti: europium titanium trioxide: 12020-61-0 EuO 3 V: europium metavanadate: 39432-21-8 EuO 4 W: europium tungsten tetraoxide: 13537-12-7 EuS: europium monosulfide: 12020-65-4 EuSO 4: europium(II) sulfate: 10031-54-6 EuS 2: europium disulfide: 55957-42-1 Eu 2 O: dieuropium monoxide ...
Vanadium forms oxides in the +2, +3, +4 and +5 oxidation states, forming vanadium(II) oxide (VO), vanadium(III) oxide (V 2 O 3), vanadium(IV) oxide (VO 2) and vanadium(V) oxide (V 2 O 5). Vanadium(V) oxide or vanadium pentoxide is the most common, being precursor to most alloys and compounds of vanadium, and is also a widely used industrial ...
In chemistry, a phosphide is a compound containing the P 3− ion or its equivalent. Many different phosphides are known, with widely differing structures. [ 1 ] Most commonly encountered on the binary phosphides, i.e. those materials consisting only of phosphorus and a less electronegative element.
Pages in category "Vanadium(V) compounds" The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. A. Amavadin; P.
Oxyphosphides are chemical compounds formally containing the group PO, with one phosphorus and one oxygen atom. The phosphorus and oxygen are not bound together as in phosphates or phosphine oxides, instead they are bound separately to the cations (metals), and could be considered as a mixed phosphide-oxide compound.
It is the predominant vanadium(V) species in acidic solutions with pH between 0 and 2, and its salts are formed by protonation of vanadium(V) oxide in such solutions: [2] [3] V 2 O 5 + 2 H + → 2 VO + 2 + H 2 O (K = 3.42 × 10 −2) The ion can form a complex with a single aminopolycarboxylate ligand, [4] or with tridentate Schiff base ligands ...