Vanadium is a chemical element; it has symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation.

2023年6月30日 · The vanadium reaction has the more negative E° value and so will move to the left; the nitric acid reaction moves to the right. Nitric acid will oxidize vanadium(II) to vanadium(III). The second stage involves these E° values: The nitric acid again has the more positive E° value and so moves to the right.

Vanadium(III) oxide is the inorganic compound with the formula V 2 O 3. It is a black solid prepared by reduction of V 2 O 5 with hydrogen or carbon monoxide. [3] [4] It is a basic oxide dissolving in acids to give solutions of vanadium (III) complexes. [4] V 2 …

钒是人体中的微量元素在人体内含量大约为25mg，在体液pH4~8条件下钒的主要形式为VO 3-，即亚钒酸离子；另一为+5价氧化形式VO 4 3-，即正钒酸离子。由于生物效应相似，一般钒酸盐统指这两种+5价氧化离子。

I know that the electron configuration of vanadium is [Ar]4s23d3 [A r] 4 s 2 3 d 3. None of the electrons in the 3d subshell are paired. Once it loses these three electrons, shouldn't the remainder of the electrons be paired? How can VX3+ V X 3 + be paramagnetic if it loses all its unpaired electrons? s d. X + s d. X3 3 + X5 5 +.

Vanadium in the +3 oxidation still is a fairly strong reductor. An acidic or neutral solution of a vanadium (III) salt is oxidized by oxygen from the air very slowly. It takes many days before a solution, containing vanadium (III) ion is oxidized to a solution, containing vanadyl ion (vanadium in oxidation state +4, see below).

ChemSpider record containing structure, synonyms, properties, vendors and database links for vanadium(III), KOKKJWHERHSKEB-UHFFFAOYSA-N

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 the +5 oxidation state. [1] .

2017年5月24日 · Like most transition metals, vanadium exists in a wide range of oxidation states — most commonly from +2 to +5, but all states from −1 to +5 exist and even the rare −3 is known, in V (CO) 53− —...

VANADIUM(3+),ION information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.