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Phosphorus pentoxide crystallizes in at least four forms or polymorphs.The most familiar one, a metastable form [1] (shown in the figure), comprises molecules of P 4 O 10.Weak van der Waals forces hold these molecules together in a hexagonal lattice (However, in spite of the high symmetry of the molecules, the crystal packing is not a close packing [2]).
Phosphoryl chloride (commonly called phosphorus oxychloride) is a colourless liquid with the formula P O Cl 3. It hydrolyses in moist air releasing phosphoric acid and fumes of hydrogen chloride . It is manufactured industrially on a large scale from phosphorus trichloride and oxygen or phosphorus pentoxide . [ 4 ]
Phosphorus oxide can refer to: 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 ...
Phosphine (IUPAC name: phosphane) is a colorless, flammable, highly toxic compound with the chemical formula P H 3, classed as a pnictogen hydride.Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like rotting fish, due to the presence of substituted phosphine and diphosphane (P 2 H 4).
Unprocessed phosphate rock has a concentration of 1.7–8.7% phosphorus by mass (4–20% phosphorus pentoxide). By comparison, the Earth's crust contains 0.1% phosphorus by mass, [84] and vegetation 0.03–0.2%. [85] Although quadrillions of tons of phosphorus exist in the Earth's crust, [86] these are currently not economically extractable.
Molar mass: 142.903 g·mol −1 Appearance purple gas [citation needed] Except where otherwise noted, data are given for materials in their standard state ...
DEHPA is prepared through the reaction of phosphorus pentoxide and 2-ethylhexanol: 4 C 8 H 17 OH + P 4 O 10 → 2 [(C 8 H 17 O)PO(OH)] 2 O [(C 8 H 17 O)PO(OH)] 2 O + C 8 H 17 OH → (C 8 H 17 O) 2 PO(OH) + (C 8 H 17 O)PO(OH) 2. These reaction produce a mixture of mono-, di-, and trisubstituted phosphates, from which DEHPA can be isolated based ...
Molar mass: 229.8402 g/mol ... Phosphorus pentoxide Antimony pentoxide: ... Arsenic pentoxide is the inorganic compound with the formula As 2 O 5. [2]