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VO 2+, often in an ionic pairing with sodium (NaH 2 VO 4), is the second most abundant transition metal in seawater, with its concentration only being exceeded by molybdenum. [4] In the ocean the average concentration is 30 nM. Some mineral water springs also contain the ion in high concentrations.
Vanadium(IV) oxide or vanadium dioxide is an inorganic compound with the formula VO 2.It is a dark blue solid. Vanadium(IV) dioxide is amphoteric, dissolving in non-oxidising acids to give the blue vanadyl ion, [VO] 2+ and in alkali to give the brown [V 4 O 9] 2− ion, or at high pH [VO 4] 4−. [4]
2 molecules. [28] Liquid oxygen is so magnetic that, in laboratory demonstrations, a bridge of liquid oxygen may be supported against its own weight between the poles of a powerful magnet. [37] [c] Singlet oxygen is a name given to several higher-energy species of molecular O 2 in which all the electron spins are paired.
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 ...
The charge on the ion is +5 − 3 × 2 = −1, and so the formula is ClO − 3. The structure of the ion is predicted by VSEPR theory to be pyramidal, with three bonding electron pairs and one lone pair. In a similar way, The oxyanion of chlorine(III) has the formula ClO − 2, and is bent with two lone pairs and two bonding pairs.
V 2 O 5 + SO 2 → 2 VO 2 + SO 3. The catalyst is regenerated by oxidation with air: 4 VO 2 + O 2 → 2 V 2 O 5. Similar oxidations are used in the production of maleic anhydride: C 4 H 10 + 3.5 O 2 → C 4 H 2 O 3 + 4 H 2 O. Phthalic anhydride and several other bulk organic compounds are produced similarly.
Vanadium(IV) oxide (vanadium dioxide), VO 2; Vanadium(V) oxide (vanadium pentoxide), V 2 O 5; Various other distinct phases include: Phases with the general formula V n O 2n+1 exist between V 2 O 5 and VO 2. Examples of these phases include V 3 O 7, V 4 O 9 and V 6 O 13. [1] Phases with the general formula V n O 2n−1 exist between VO 2 and V ...
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 ...