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In aqueous solution, vanadium forms metal aquo complexes of which the colours are lilac [V(H 2 O) 6] 2+, green [V(H 2 O) 6] 3+, blue [VO(H 2 O) 5] 2+, yellow-orange oxides [VO(H 2 O) 5] 3+, the formula for which depends on pH. Vanadium(II) compounds are reducing agents, and vanadium(V) compounds are oxidizing agents. Vanadium(IV) compounds ...
Patrónite is the vanadium sulfide mineral with formula V S 4. The material is usually described as V 4+ (S 2 2−) 2. [6] Structurally, it is a "linear-chain" compound with alternating bonding and nonbonding contacts between the vanadium centers. The vanadium is octa-coordinated, which is an uncommon geometry for this metal. [7]
The chemistry of vanadium is noteworthy for the accessibility of the four adjacent oxidation states 2–5. In an aqueous solution, vanadium forms metal aquo complexes of which the colors are lilac [V(H 2 O) 6] 2+, green [V(H 2 O) 6] 3+, blue [VO(H 2 O) 5] 2+, yellow-orange oxides [VO(H 2 O) 5] 3+, the formula for which depends on pH. Vanadium ...
Sulfosalt minerals are sulfide minerals with the general formula A m B n X p, where A represents a metal such as copper, lead, silver, iron, and rarely mercury, zinc, vanadium; B usually represents semi-metal such as arsenic, antimony, bismuth, and rarely germanium, or metals like tin and rarely vanadium; X is sulfur or rarely selenium and/or ...
Vanadium(V) oxide (vanadia) is the inorganic compound with the formula V 2 O 5. Commonly known as vanadium pentoxide , it is a dark yellow solid, although when freshly precipitated from aqueous solution, its colour is deep orange.
Vanadyl sulfate is most commonly obtained by reduction of vanadium pentoxide with sulfur dioxide: . V 2 O 5 + 7 H 2 O + SO 2 + H 2 SO 4 → 2 [V(O)(H 2 O) 4]SO 4. From aqueous solution, the salt crystallizes as the pentahydrate, the fifth water is not bound to the metal in the solid.
Vanadium: V 5 4 d V 3 Si, V 5 Si 3, V 6 Si 5 ... Si 2 O 3 and Si 3 O 5. [94] Silicon sulfide is also a chain compound. ... Tellurium silicide is a semiconductor with ...
Treatment of sulfur with hydrogen gives hydrogen sulfide.When dissolved in water, hydrogen sulfide is mildly acidic: [5] H 2 S ⇌ HS − + H +. Hydrogen sulfide gas and the hydrosulfide anion are extremely toxic to mammals, due to their inhibition of the oxygen-carrying capacity of hemoglobin and certain cytochromes in a manner analogous to cyanide and azide.