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Phthalic anhydride is produced similarly by V 2 O 5-catalysed oxidation of ortho-xylene or naphthalene at 350–400 °C. The equation for the vanadium oxide-catalysed oxidation of o-xylene to phthalic anhydride: C 6 H 4 (CH 3) 2 + 3 O 2 → C 6 H 4 (CO) 2 O + 3 H 2 O. The equation for the vanadium oxide-catalysed oxidation of naphthalene to ...
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 ...
The oxidation states are also maintained in articles of the elements (of course), and systematically in the table {{Infobox element/symbol-to-oxidation-state}}
Vanadium oxide mainly refers to: . Vanadium(II) oxide (vanadium monoxide), VO; Vanadium(III) oxide (vanadium sesquioxide or trioxide), V 2 O 3; Vanadium(IV) oxide (vanadium dioxide), VO 2
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.
Inhaled xenon gas caused the microglia to revert to a protective state, leading to a decrease in the amyloid plaques characteristic of Alzheimer’s disease, reduced inflammation, ...
Jason Kelce watched his former team, the Eagles, beat his brother Travis Kelce and the Chiefs in the Super Bowl. Here's how he felt about the game.
It’s illegal to sell or buy, but casu marzu, a maggot-infested sheep milk cheese is a revered delicacy on the Italian island of Sardinia. Locals hope their unusual dairy product can shed its ...