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Phosphorus pentoxide is a chemical compound with molecular formula P 4 O 10 (with its common name derived from its empirical formula, P 2 O 5). This white crystalline solid is the anhydride of phosphoric acid. It is a powerful desiccant and dehydrating agent.
Phosphorus pentoxide (phosphorus(V) oxide, phosphoric anhydride), P 2 O 5; Phosphorus trioxide (phosphorus(III) oxide, phosphorous anhydride), P 2 O 3; Phosphorus tetroxide, P 2 O 4; Several other, less common, oxides of phosphorus, including P 4 O 7, P 4 O 9, and P 2 O 6; Gases: Phosphorus monoxide, PO; Phosphorus dioxide, PO 2
Dinitrogen pentoxide (also known as nitrogen pentoxide or nitric anhydride) is the chemical compound with the formula N 2 O 5. It is one of the binary nitrogen oxides, a family of compounds that contain only nitrogen and oxygen. It exists as colourless crystals that sublime slightly above room temperature, yielding a colorless gas. [4]
Pentoxide may refer to: Antimony pentoxide, Sb 2 O 5; Arsenic pentoxide, As 2 O 5; Carbon pentoxide, CO 5; Dinitrogen pentoxide, N 2 O 5; Iodine pentoxide, I 2 O 5 ...
Arsenic pentoxide is the inorganic compound with the formula As 2 O 5. [2] This glassy, white, deliquescent solid is relatively unstable, consistent with the rarity of the As(V) oxidation state. More common, and far more important commercially, is arsenic(III) oxide (As 2 O 3 ).
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Protactinium oxides are known for the metal oxidation states +2, +4 and +5. The most stable is white pentoxide Pa 2 O 5, which can be produced by igniting protactinium(V) hydroxide in air at a temperature of 500 °C. [10] Its crystal structure is cubic, and the chemical composition is often non-stoichiometric, described as PaO 2.25. Another ...
Fresh iodine pentoxide. Iodine pentoxide is the chemical compound with the formula I 2 O 5. This iodine oxide is the anhydride of iodic acid, and one of the few iodine oxides that is stable. It is produced by dehydrating iodic acid at 200 °C in a stream of dry air: [1] 2HIO 3 → I 2 O 5 + H 2 O